Need Advice on Intake Install (Poly 318)

[khryslerkid]

ok thanks for all the help everyone. I'm gonna go to the auto parts store to get some supplies.

I pretty much decided I'm gonna use ULTRA GREY for front and back, and discard the foam stuff they gave me. Then shoot the metal compression gaskets with some Permatex copper gasket spray. I may also put a little Ultra Grey both sides around the coolant passage port on gasket just to be safe.

Shake the hell out of the Copper Coat can to get the copper particles mixed real good. Spray on a piece of cardboard first to make sure you're not getting just clear glue. It's great stuff!

 

[Evan Frucht]

Any performance would be negligible.
But it would help with heat soak when you shut it off for 5-15 minutes.
Since you are in California a warm climate, probably a good modification.
I just folded up a piece of sheet metal and stuck it in the hole.
Not really an exact science...
What carb are you using?
A small AFB would be good. 500 CFM

I'm using a Carter AFB, I think it's 650. Seems to run well.

 

[Don Frelier]

My favourite, easy to work on

 

[matthon]

On the poly, I have found, the valve covers have a better chance of sealing if, as you tighten the 2 bolts, push up on the valve cover.