thanks a ton for the good advice.

the reason i was asking about 250 HP considerations is that if I'm going to sink money into it, I'd like to be able to sell it in the end, and don't think people will want to buy a stock 305.

i actually bought this engine to learn on. paid 100 bucks for it complete, and have an engine stand so thats not a problem.

so the unasked question is should i really spend much more on this motor in terms of new parts vs go through rebuild w what i've gotten the "educational value" and exchange the core plus $ for a good 350 block.