[PRAY]

Originally Posted by biker2k

my understanding from what I've seen is that the ported stock manifolds are a big improvement over stock, but they cant keep up upstairs with the msd and where they peak and fall off the msd keeps pulling. I figure with headers and the bigger throttle body you would benefit from a manifold like that, I am hoping not to lose too much downstairs and in all of the dyno posts I've seen around here including the ones from pray, the msd doesn't give up much if anything downstairs even though that was the original thought with the msd….. maybe I'm doing the wrong thing, I don't know... what am I missing
I'm figuring with a tune I should be golden...
especially since my next winters plan is cam and ported heads

Here are three of many.