Engine overhaul
pat g did a cam for someone in an old ford i think, he was limited to stock manifolds. but had an eps cam and 243's on an ls1 and got 400 to the wheels...
yeah a budget would be more beneficial to those trying to point you in the right direction.
I have seen numerous AFR 205s massaged/milled with a 228ish cam get around 450rwhp and the driveability would still be very nice as well as with the right exhaust, stealthy. The higher compression will pop though and to anyone who knows what they're listening for, a dead giveaway for high compression.
Fast (MAYBE LS6) intake, high quality long tubes (Kooks), quality merge on the Y-pipe (Flowmaster), tune, maybe an ATI crank pulley and all supporting hardware. I would think that would easily net your 450 at the tire through a 6 speed. You may need to clutch and hydraulics to handle that power though. Mine started slipping @ 400 to the rear tire. Never did get a quality dyno pulls out of 4th, but I will head back soon.



