I have a mildly modified 90sc with 70k on it. I've got a 2 1'4 into 3 into 2 1'2, exhaust, CIA, ported manifolds, and was wondering how much boost is safe for a relatively stock car like mine. I"ve got the stock HG's on it and from what i hear, thats the main problem with these cars. Just wonderin how strong these engines are and how much boost should i run?