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04-17-2006 02:43 PM #2
CHR Member
- Join Date
- Apr 2004
- Location
- Little Elm
- Car Year, Make, Model: 34 Ford Low Boy w/ZZ430 Clone
- Posts
- 3,890
It's all in the cam.
They just change the cam grind so that the exhaust valve opens on the intake stroke, and the intake valve opens on the exhaust stroke.
It's not very efficient without major head work, because exhaust valves are much smaller than intake valves. I can't see any reason for it except for visual impact.Jack
Gone to Texas
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Dammit, another good ol boy gone. Condolence to the family. RIP Mike
RIP Mike Frade, aka 34_40