| Then you'll have to get the heads ported to match the now much larger intake runners. There was a picture on here somewhere of an extrude honed lower plenum on a stock head and the edge of the intake port on the head stuck out 1/8"-3/16" all the way around. Anyway, you can get to 470hp, even at the wheels, without alot of extrude hone/porting/throttle body/intake piping work. None of that is going to hurt you really but if you're trying to spend money where it counts then it might be better spent elsewhere.
1989 240SX Fastback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1995 300ZX Twin Turbo
 Warning: Objects in mirror aren't as fast as they thought they were. |