engine and drivetrain weber 38 manifold

[Krack]

I'm thinking of upgrading to a weber 38, but i read that the manifold for my 32/36 needs to be adjusted for the 38. How hard of a modification is it? And is the ireland engineering custom 38 manifold worth spending the green on, instead of modifying my current setup?

thanks,

David

[pkbinplano]

your manifold is fine for a 38

[Supergeek]

I'm thinking of upgrading to a weber 38, but i read that the manifold for my 32/36 needs to be adjusted for the 38. How hard of a modification is it? And is the ireland engineering custom 38 manifold worth spending the green on, instead of modifying my current setup?

thanks,

David

David, I picked up a manifold at a local junkyard a while back. It is a "peanut" style. When I purchased my 38 Weber I placed it on the manifold and both throttle butterflies opened with ease. I am going to open up the hole because it is actually to small and I want better airflow. If your manifold has the two holes instead, it might work that way. But remember it was designed for a 32 Solex and not for a 38 Weber. Enlarging the holes might not be nessasary. Most people here say It will need to be enlarged. Im using my Dremel with sanding wheels. Its taking longer than I thought bit I know Im saving money. Good Luck.

David

[Guest Anonymous]

Grind out your stocker's holds to 40 40 mm, put a swirl in it ,gasket match the ports as far back as possible , and smooth the short turn radii and you will surprize yourself.