S/R Torquer heads are a good buy. I ran them on my previous street rod that had a 350 with a B&M 142 supercharger. I had them pocket ported before bolting them on. They are capable of supporting 400 hp. The only down side is that they have the older combustion chamber design, but they are available in either 67cc or 76cc chambers so you can choose your compression ratio based on the pistons you have. You could almost have a set for what is costs to completely rebuild a set of old heads.