My interest in this engine and tranny stems from them being already rebuilt with only a few thousand miles on them. The engine has a Stealth intake, Edelbrock 800 cfm carb and an aftermarket cam (not sure what kind yet). The C-6 is rebuilt with a 3500 stall converter. The combo costs much less than rebuilding my current 351C and FMX trans. Given my goal of 450hp in a car that won't be raced, should i stay away from this 429 just because of the poor heads? Could I swap out the current heads for a set of better stock 429 heads from an earlier year? What should I expect to pay for a set of C or DOVE heads?