Open spacer on stock 4 hole intake...what?

[MrSony]

So, after stewing it over for a bit, and finding nothing too helpful on the internet, I have come to you guys. Isn't it a bad idea to have a 4bbl carb with an open spacer on a 4 hole cast iron intake? Seems to be that'd just cause a myriad of problems.

 

[565bbchevy]

You are correct that would cause distribution problems, always use spacers that work with the design of the intake and seal correctly.
I only use phenolic spacers made from laminated sheet for the insulation properties.(never aluminum spacers)
Any spacer I use is made by Jomar Perormance in Pontiac MI.

 

[MrSony]

Ok thanks.

 

[87BlazeLS]

when I first installed my Cowl induction scoop it was much smaller than the one I have now.
The new one has a 4" rise which allowed for more height above the carb.
So to keep my intake in the air stream I purchased a 1" thick Phenolic open spacer
to put under the carb. The manifold is an Edlebrock EPS.
This setup works great and no issues with the way it runs.

 

[MrSony]

Probably should've mentioned, this is on my 1970 T-Bird. 429, cast iron intake and 600 holley. When budget allows (I sh*t you not I have 30 cents to my name, and if I'm lucky 50 bucks on Monday). I will be purchasing a 4 hole soon. Kmart hours just aren't cutting it. Especially when they give you three days for a month.