Any 318 Performance tips?

72Dodge said

I agree some bigger valves in those heads may be better, but I suggested 302's mostly because he mentioned cheap, if he could find some real cheap, plus should bring compression up a bit. Not disagreeing with either of the above 2 comments, just another way of looking at it, and potentially an even cheaper move.

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In his first post, he states very clearly, no money for Pistons or heads.
The best option at this point is to simply reuse the stock heads well preped. Home polishing of the chamber and exhaust port is what he can do inexpensively.
A well don't valve seat multi angle job should be done.

I only wish I could provide the seat cut angles.