my car consists of 89 notch stock bottom end 302 edlebrock alluminum 190 valves, 58cc,1.7 rr, e303, trickflow street intake,sn93 paxton 6psi,btm,70mmtb,mass air meter. a buddy wants to trade me heads mine for a ported set of vic jr. w/202 valves not sure of cc.are these a good trade, or too much.all opinions appreciated.