Me and my dad are putting together a engine for his pickup truck because the original 318 overheated to the point of no return. We have a 10.5 flattop 340 ready to put together and he just had a set of the 318 lean burn heads casting 302 like what came on his truck rebuild like new from factory with a little stiffer springs. The engine will have a 318 performer intake manifold, headers into duels, with a 340 sixpack cam controlling the valves. For fuel management holly 750 double pump carb. The Pick up is 89 single cab long bed with factory gear in the rear 9.25 rear end.
I would like to know if anybody hear could give me a idea if we will run into any issues using these head with this bottomend. If not how much power do you think she will make. If need more info let me know.