because you can pull the motor/trans at any time.
I would say use what you got in regards to motor and trans.
you can always install a different motor and trans at a later date.
i'd say, get body, suspension, brakes, fuel system, done first.
do a compression test on your engine to see what each cylinder has for psi.
i'd even say run it with a single carb initially if that is what you have.
so you can put your money elsewhere for now.
that said, it seems a nice set of dual dellortos/webers run about $400 typically. you won't need the biggest out there.
http://www.914world.com/bbs2/index.php?sho...p;hl=dual+carbs