Looking for more 408 pull at the big end?
Hmmm. Heads? Heck I figured with Edelbrock and Hughes I was bound to come out alright. I would not have thought that would be the limiting factor. Converter tho'. Yes I know its mild but seems to fit my type of use. I guess that is pretty easy to swap though.
I thought for sure my 1st ping from the crowd would be the airgap!