Hi U yes, that 9262 would work for your 350 especially since you're OB'd and ported heads. Like Barnbird mentioned, you'll need to test different jets and needles. Also with today's fuel (less octane and lead) you might need to make some adjustments to your air & fuel bleeds. Involves micro hand drill bits to open them up 1/1000's" The 9262 is a desirable model (and it's a Pontiac), not the highest demand but would work well for what you described. $350 seems a bit high unless it's totally rebuilt, matching numbers and tested.
