i have a 1987 monte carlo ss im putting a all forged internal lq4 in i have the block ready and have a set of l92 heads brand new on the way.what valve train upgrades should i do and also should i machine the heads? im looking to put a big cam in it and make 550 n/a and 700-750 on spray need help with cam numbers and also what machining i should do to the stock l92 heads