[qwikz28]

how would i know if my car did not have the correct pushrod length? my car didn't make the power it should have on the dyno and still has a wicked valvetrain noise that sounds like a mix of a very fast knock and a header leak. eastside blamed my aftermarket rockers, but i don't buy that. i think my pushrods are the incorrect size. car has ls7 lifters which are supposed to be a oem replacement. yella terra rocker arms which advertises that changing the pushrods may be needed. and also the heads were milled .007 to be true. but thats an insignificant difference. eastside said to put the stock rockers on and report back to them. any ideas?