i had one come appart on me and i thought it was a freak failure, upon very close inspection at full lift the pushrods were tapping againts the trunion alot. So that could be something to check. Oh and lack of oil could do the same thing.
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72firebird 3800# 496 316cfm eheads, 11.1:1 compression, custom solid roller, victor 4500 intake port matched, 1050 dominator, continental converter flash 4400 stall. 3.73. 2 inch headers with 3.5 with x to mufflers reduced to 3 inch full exhaust. mallory 250 fuel pump, cal tracs with split monos ..Pump gas 91 octane.
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