I have a 400 based 451 with Max Wedge size Stage VI heads (flow 310ish), Mopar 590 cam, Indy 440-3 intake, Quick Fuel 1050 Dominator. With my current piston, I'm a little over 13:1. With me in it the car goes 3300lbs the bests are in my signature.

When i was researching heads I remember reading the comment that the Stage VI's were very well suited for the smaller displacement engines 451/470 but based on the previous post they seem to do fine on the larger displacement stuff also.

My only compliant is the amount of oil they hold near the bottom side of the valve cover and that is even after I have cut some reliefs in the spring pockets. However in the scope of things very very small price to pay.

'75 Plymouth Duster
Phase I 451 906/590/2-660 10.75/126
Phase II 451 Stage VI/590/1050 9.82/135
Phase III 383 906/Victor-Pump gas 11.30/119

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