well... i put a budget 383 together to get me though till my 406 was done. it has stock alum corvette heads and pink rods and it running low 11's in my 2500 pound vega shifting at 6500 rpm........you can build a 10.50 motor with what you got :wink:
i got a stock bore 400 sbc block(only 2 bolt) and a few 350 blocks(2 bolt and 4 bolts) if you need one :wink: