Magnum 5.9, 30 over, compression 10 .5, EQ 318b heads with bowl work and 2.02 ,1.60 valves, six pack, TTI 1 5/8 TO 1 3/4 step headers, cam will be hyd roller of roughly 232 x240 @ .050, 108 cl, about .480+ lift using chev 1.6 rockers and olds studs. I am considering this as a possible combo for a 4 speed 1973 duster my son and i hope to purchase. It was a car i bought for my son in 1988, got sold, we are hoping to get it back and build this motor for it. Rear gears will be 3.55 or 3.73, tires 28 tall. I am hoping this combo will build very good torque from 3,000 up to about 6200 rpm and live well. Opinions? Similar success stories?