Hi all, I bought an l33 engine and it came with a cam (0.645 intake lift and 0.650 exhaust lift) I am very new to camming engines and I need a little help selecting the springs and rockers. I am on a bit of a budget however. Another question: will I be able to keep the stock valve covers (I think that's the right name) and stock pistons or does this can not leave enough clearance for the valves?