I have tsp hardened pushrods and ls9 valve springs, just need to buy my cam. Decided to go with the asa cam (226/236 .525 int .525 exh 110 lsa). Would I benefit from swapping my 706 heads for 243's? I haven't purchased the asa cam yet, but my reason for choosing it is is sounds great and its a lower lift cam that wont be hard on my valvetrain since this is my daily (05 silverado z71 4x4 ecsb). Going to go with Howard's grind of the ASA since they supposedly have better lobes than the gmpp version. Anyone have any suggestion for what I should do about heads? Or anyone know of a better low lift cam that I can safely run in my daily with the ls9 springs?