Comp Cams XS268S, Has anybody used this cam in a 355 and liked it or otherwise? Trying to chose a good hot street cam for my 1979 Camaro. 355 flat top piston 10.5 : 1 compression .031 quench, ProComp 190cc heads 2.05 in. 1.60 ex. with light port work, 1 3/4" full length headers, Edelbrock performer RPM manifold with plenum divider notched out 7/8". 750cfm Holley. Automatic trans 3.43 gear so I need some grunt down low and want to turn 6000 on top. Any Ideas ?