Hello my name is mike and im building a 350 for a pulling truck. only one problemi have a small budget. i have a set of 906 vortec heads that i picked up and am having puched to 2.02/1.60 and ned to figure out how many rpms i can turn with a stock bottom end 4 bolt main? if you can help me i would greatly appreciate it, also if you know of any discount suppliers of engine parts that would help alot too!!