Are the 302 swirl ports a good option on a 360? I would probably have the larger valves installed and open the intake and exhaust to match my eddie performer rpm manifold and headers. I also have a set of open chamber j heads with 1.88 and 1.6 valves I can use. This is going on a stock bottom end rebuild.......not sure if it's worth the extra money to have the 302's worked on or not. The goal I am looking for is increased compression and hp.....any suggestions would help out alot.