[PLDRIVE]

MJJ
425 to 475 HP is a mild windsor. In this horsepower range it will behave very well. I would look in the 427CI to 445CI range (a windsor will go out to 468CI). A SBF in this cubic Inch range will make plenty of low end TQ.


Stack injections are beautiful to look at, but will require good tuning skills. They also do not like restrictive filters (it will kill the HP).





Istock
"calms" = smooths out the cam. IR manifolds do not pulse in the same manner as single plenum manifold.