Quote:
Originally Posted by slowbird
I'll put money that no iron d-port will keep up with a set of properly done alum d-ports. I don't think Jim's test was a fair test. Jim was heavily vested in iron, he didn't want the alum heads to out perform the iron.
|
Remember Jim Roberson did up a couple pretty wild pairs of 48s.
Made 806 HP with one set and the other went 340 cfm. Tons of epoxy for sure.