After I upgraded to a .664/.669 roller, upsized the valves to 1.90/2.25, and worked the heads , 12 PSI no more . . . you just can't manage it. 7 PSI in 3rd is retarded . . . it'll stand the hair up on the back of MY neck.
I spent a lot of my youth in my friends '72 Cutlass (not blown of course), some great times were had for sure.
After years of rolling in faded green paint, my friend installed a ram air hood and had the car painted grabber orange with white stripes, it looked great:yes:....for two weeks.....then burned to the ground from an electrical problem.
The engine in my cutlass was blown too. Unfortunately it wasn't force fed. In fact before I gave it up 26 or so years ago, I think I blew 3 engines. Looking back i'm sorry it wasn't a chevy. I would've been a third the price. Plus the headers cooked the starter and every third swap snapped the dipstick tube . w30 cam with the 328 duration made no vacuum for the brakes and didn't idle worth a sh*t under 1000. I did admire your avatar. it brought back memories.