Do you mean reverse flow, like LT1, or reverse rotation? What year 'vette should I get one for? BTW, is your ZZ4 EFI? How well does it run? Shannen JE Messler wrote: > > Try a Corvette aluminum reverse flow. We just put one on a ZZ4 motor > running a serpentine system. > Jim Messler > http://www.streetrodframes.com > > steve ravet wrote: >