...on my Mustang. The motor was a 454 incher with ported Edelbrock heads, domed L2298 pistons, and a 308R cam. I was running 3310 Holleys.
My car is a little lighter than yours, but it drove fine on the street and ran right at 11 flat shifting at 6500rpm. I'm sure there was more in the combo, but good enough for a street cruiser.
Eventually my friend wanted his manifold back and I put my tried and true Port-O-Sonic back on. The car ran about the same.