Help With Edelbrock 2101 Intake Manifold

[bigoltrux77]

I know im probably getting annoying with all my posts but, i need some more insight. Im putting this intake on my Blazer but there are some holes that i dont know what they are used for. Of course the back is for the distributor, middle for the carb, and front for t-stat housing. But there is on inbetween the carb and distributor. Like Picture below.The bigger hole closer to the carb.

 

[GotBoykins]

That is for a "T" fitting for vac lines. Or for a plug if you dont need the vac lines.

 

[bigoltrux77]

Here is a better picture. I need info on the hole inbetween the distributor and carb. And the two big holes on each side of the tstat hole.

 

[mulletman671]

The one in back is for vacuum(brake booster, auto tranny, etc.) if your carb doesn't have enough ports, the two in front are coolant..... I put a nipple on one for the heater core inlet (the one on the pass. side) and plug the other.

 

[Cornfield creations]

yeah the two in the front for coolant. I have a nipple in one, and in my application I have my temp. sensor there. I believe most take a plug though.

 

[bigoltrux77]

What type of fitting do i need for that? And what is that hole on the left side of the carb opening? ITs directly below the carb in the picture.

 

[bronc3buster842001]

u need a plug with pipe threads and the other hole by the carb is for a divored choke u can block it off if ya dont need it

 

[bigoltrux77]

what would i block off the divorced choke hole with?

 

[bronc3buster842001]

go www.edelbrock .com and u can find all the parts u need there if u have trouble finding the parts let me know and ill find the part # and send them to ya

 

[mulletman671]

I believe the front fittings are 1/2 NPT (you'll need one plug and one nipple fitting for 5/8 heater hose or 1/2 heater hose depending on the year) and its a 3/8 npt plug for the vacuum port in back

 

[mulletman671]

And BTW whatever machine Edelbrock uses to thread those holes is terrible.... use teflon tape and crank em in or they'll leak like you wouldn't believe

 

[454k30]

That manifold should've come with an aluminum block off for the choke. It looks like a square hunk of metal with a couple bolt holes. On mine there was also a small hole in that blank off which needed to be plugged.