Any 5.3 motor results
pacesetter fbody longtubes/3in dual w/ x and flowmaster knockoffs
ported fast 78 intake
218/228 .550 112 regrind cam/ls6 yellows
car had power steering
nothing else
my buddies 62 bel air did 300 with the same regrind, stock manifolds, quiet mufflers, ls1 intake
no power steering, no a/c


