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79' GMC C15 - Spruce Caboose

79 GMC 1500
Always thought that was a big block air cleaner. I have one in the garage and one on my 350 rig, they were on the last 2 rigs I owned. (350s).
 
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Honestly I prefer the manual choke on my 66 versus any electric choke I've had. I looked into a manual choke for the Street Demon in my 73, but didn't find an option.
 
Found some info on the hole by the choke

Click

This was my search click

I've been so busy with work I haven't managed to do any research so thanks a ton for that info. Really did solve a lot of questions I had as edelbrock doesn't mention it once anywhere in their literature and what not. I'm happy I decided to use tape and not epoxy.. much easier to remove haha.
 
Honestly I prefer the manual choke on my 66 versus any electric choke I've had. I looked into a manual choke for the Street Demon in my 73, but didn't find an option.

I love the manual choke on my bikes carbs, ive used a few but never owned one on a Chevy truck. But having infinite control at the tip of your fingers , especially as fast as weather can change, I'd much rather have a manual choke but oh well. I'll learn to deal with this electric doodad.
 
I have no problem with the electric choke. BUT, it does take some time tinkering to get it where I want it. And I always set them kinda light. I always drop the high idle a good amount, and it will back off most of the way before the engine is very warm. So it always takes me some time to try it under different circumstances and days. You'll get there.
 
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I've been so busy with work I haven't managed to do any research so thanks a ton for that info. Really did solve a lot of questions I had as edelbrock doesn't mention it once anywhere in their literature and what not. I'm happy I decided to use tape and not epoxy.. much easier to remove haha.

I was curious myself. I have a 1406 sitting in my garage....
 
I have no problem with the electric choke. BUT, it does take some time tinkering to get it where I want it. And I always set them kinda light. I always drop the high idle a good amount, and it will back off most of the way before the engine is very warm. So it always takes me some time to try it under different circumstances and days. You'll get there.
I also run the high idle way down. Really light is my preference too, but then they tend to pull off too soon on the moderately cold mornings around 30. Then on the really cold morning I feel like it takes forever to drop off the high idle anyway. Couple times this winter in the 73 I had trouble with the high idle when the streets were slick just pushing the front tires. Although redoing the rear brakes and axle seal might help with that.

In the 66 it's much simpler. Pull full choke to start. Back it off until it idles smooth and then a bit later pull it off all the way. And if I got to eager pulling it off too soon, I can back it in a little.
 
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I also run the high idle way down. Really light is my preference too, but then they tend to pull off too soon on the moderately cold mornings around 30. Then on the really cold morning I feel like it takes forever to drop off the high idle anyway. Couple times this winter in the 73 I had trouble with the high idle when the streets were slick just pushing the front tires. Although redoing the rear brakes and axle seal might help with that.

In the 66 it's much simpler. Pull full choke to start. Back it off until it idles smooth and then a bit later pull it off all the way. And if I got to eager pulling it off too soon, I can back it in a little.
I don't drive away if it is still on high idle, at least not if the roads are slick. But I would rather deal with a small stumble than have the choke hang on too long. I got tired of having to baby sitting the engine with manual choke when the jetting is correct for a warm engine. Fire it up, tend it for a minute, then walk away an let it warm up.
 
I have no problem with the electric choke. BUT, it does take some time tinkering to get it where I want it. And I always set them kinda light. I always drop the high idle a good amount, and it will back off most of the way before the engine is very warm. So it always takes me some time to try it under different circumstances and days. You'll get there.

I also run the high idle way down. Really light is my preference too, but then they tend to pull off too soon on the moderately cold mornings around 30. Then on the really cold morning I feel like it takes forever to drop off the high idle anyway. Couple times this winter in the 73 I had trouble with the high idle when the streets were slick just pushing the front tires. Although redoing the rear brakes and axle seal might help with that.

In the 66 it's much simpler. Pull full choke to start. Back it off until it idles smooth and then a bit later pull it off all the way. And if I got to eager pulling it off too soon, I can back it in a little.


I noticed this right away when i fired it up, the idle was intense. I think i remember it being mentioned around 1500, and sure, if im trying to build up 3 air tanks in the crane on a cold morning.... but not this little pick up. I set it down, and then it was too low now its up some and could probably use some more tightening up. Im sure the choke could be adjusted as well. Ill get there haha just like @6872xtc mentioned
 
Did some snooping...here's a complete guide to Edelbrock carb tuning.

Click

It downloads as a .PDF file, then open it.
 
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Did some snooping...here's a complete guide to Edelbrock carb tuning.

Click

It downloads as a .PDF file, then open it.

This will keep me busy for awhile, until i forget half of it haha. Great for troubleshooting though!
Thanks dude
 
I don't drive away if it is still on high idle, at least not if the roads are slick. But I would rather deal with a small stumble than have the choke hang on too long. I got tired of having to baby sitting the engine with manual choke when the jetting is correct for a warm engine. Fire it up, tend it for a minute, then walk away an let it warm up.
I just let the 73 idle until it smooths out; a minute or 2 at most. On this carb it won't kick the idle down until it's pretty warmed up. Something about the choke is different from the others I've had. I'd have to let it idle for quite a while.

I don't have any idea what the jetting is on the 66 4GC carb with the manual choke, but it doesn't need any babysitting. Pull it out, start the engine, push the choke in to where the idle is smooth. Then I can drive it and pull the choke all the way off a bit later.
 
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I just let the 73 idle until it smooths out; a minute or 2 at most. On this carb it won't kick the idle down until it's pretty warmed up. Something about the choke is different from the others I've had. I'd have to let it idle for quite a while.

I don't have any idea what the jetting is on the 66 4GC carb with the manual choke, but it doesn't need any babysitting. Pull it out, start the engine, push the choke in to where the idle is smooth. Then I can drive it and pull the choke all the way off a bit later.

Yea that's sorta what I do with this one now. Got it pretty dialed in except I never let it run the full course of the high idle cam, it seems like you said, where it would wait til it was fully warm before releasing so I just tap the pedal after a minute or two to kick it off the cam.


Not much new has gone on with the truck lately. Did order up a new fuel pump, window regulator for the drivers side since the splined piece that comes out to the crank handle is bent so rolling the window up n down sucks, also ordered a rivet kit for it. Ordered a 2 line pump so I'll eliminate the fuel evap canister.

Trucks running without a hitch right now so I'm just leaving it alone.

I did get some cool news the other day. An offer I put on a property was accepted. Which means no more wrenching on the curb parking outside my house!

I can't wait to properly tackle this rust this winter. Plans are to strip cab and box off frame and go over the whole truck.

Here's some pics of a dream come true

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Gonna have to finish the grade on the second garage door so it's accessible. But other then that it's pretty minty.
 
Thanks everyone, my upbringing was pretty rough and I never thought I'd get here, but hard work and never giving up, even with the weight of your existence on your shoulders from a young age, paid off for me. Anyone who thinks you can't do it, just be better than yesterday, one day at a time and you'll get there.

:bow:
 
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