your combo sounds just like my motor, mine is a 383 with srp 13 to 1 30 over 350 with 3.750 eagle crank and 6" eagle h-beam rods and 235cc pro action iron heads with the holley 750 hp carb powerglide and 4.71 gears and i'm running 10.70-80's. my cam is 630-630 solid roller and same intake.