Chevy 350

[321countryboy]

So I recently installed a new chevy 350 tbi off jegs into my 1993 chevy k1500. Once I got it running and set the timing I drove it an it the Rpms would move around and the truck would start to shake really bad. I seemed to stall out when in reverse and it seems to be sucking down a ton of fuel. I did the iac an no changes and also cleaned the egr. I'm kinda stumped could it possibly be the coolant temp sensor. I have no check engine lights on.

 

[dyeager535]

Verify plug wire order and that you absolutely do not have a vacuum leak.

 

[321countryboy]

Plug wires are in correct order an I can't find a vacuum leak at all. I rebuilt the throttle body an put a new base gasket on it. It ran a lot better at idle then when I put it in reverse it stalled out there's also no codes be throwing

 

[dyeager535]

Brake booster is good? No bad vacuum lines for sure?

Did you do the "minimum air" adjustment? With a new motor, you may need to do that to get idle correct. Should be able to google that with TBI in the search, and find out the procedure. Pretty easy.

 

[321countryboy]

I think I got it figured out I put new spark plug wires on it when i put the motor in an today I was listing to it run an I could hear something like spark jumping so I pulled off the air cleaner an looked at the wires an one of the wires had a small cut in it. So I replaced the wire an it ran fine but still seems like there's something wrong