1st of all, sell those heads, they are no different then what u already have, except they r shaved .050 to raise the compression... have a known place port your heads, use the SE pistons, and either the SE497 cam, or SE536 cam... the carb isn't necesarry at under 100hp, but it does give better throttle response and better adjustability for tuning... see
HERE, and
HERE for more info...