Im building a 65 belvedere sedan a990 clone. The engine is a 472 cid , 12.5 comp. , solid roller cam and mp aluminum heads . The car will be used mainly for street fun and show, maybe a run or two down the strip. I havent picked out a rocker system yet. Do i need really need to go all $$$$$ on a set rockers shafts and stands, or will a cheaper setup like the one on ebay(sorry) work fine? Wouldnt the stock setup and roller tips on the intake work fine??? I really cant see paying for stage v stuff, when the engine will be rarely push hard. What type of problems might I have with stock parts ???