That is one of the reason, 4.250 bore size with the 1.880 exhaust valve sizes, that Mopar notched the cylinder walls on all the Max Wedge blocks with those small lift(.525 max lift on the stage 3 425 HP motors) stock cams. Do those T.F. heads come with the 2.19 size intakes valves stock or is that a option or did you put thoes in your heads? confused

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)