I got a 429 with a 460 crank offset ground with 440 rods and custom Weisco pistons, 500 ci. It's got a PortOSonic intake, with a Holly 950HP carb. An Erson hydraulic roller 588 lift and 250 duration @ 50 thousandths, and ProComp heads. The machine shop sold me the heads.
It is in a 71 Mustang with a C6 and a 9in.,and I'll tell you what, that puppy flat out screams. It has CalTrac suspension in the rear, but no locker, and it's got a serious lack of traction problem. The "tire" will bust loose at 65 MPH. No joke.