Hi guys, wondered if you might be able to help. I have a merc 454 330hp engine with a very rusty stock intake. I bought a secondhand edelbrock performer rpm manifold but have just noticed on installing that this carb does not fit this manifold (bolt pattern).

Firstly, is this a good setup? And secondly can I get an adaptor for it?

I am not looking for gains, just needed a clean manifold.

Thanks in advance

Mr. Gasket makes one. My local Napa store has one for $28.