Olds/Pontiac 9.3 in an A-Body?
I know I'm not a numbers matching guy, although I was in the past. These days I build my cars to suit me, not the masses. I was roasted when I first joined about cutting up a 71 Demon 340 4 speed car. Fortunately I wasn't to blame, the car had been chopped up long before I took possession. These days the Demon is a 10 second bracket car headed to the low 9 second area really soon. My suggestion is to build it as you want it and with whatever parts you can get and afford.