my dad has a 64 chevyII that he is restoring. it has a 400 bored 60 over with 5.7 eagle rods, kb pistons, fuelie heads, weiand intake, edilebrock gear drive, screw in studs, guide plates, edilebrock roller rockers, holley 650 double pumper, 3800 stall converter, and a powerglide. it is by far the quickest street car ive ever ridden in. it has pretty much convinced me that i want a 400 for my z.