posting incase anyone has this same question. Butlers website clearly states the MSD Holley Engineers cannot confirm the gears will last with certain roller cams. I swapped the melonized gear out for a bronze one in its current configuration. Likely will get composite at some point.
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1968 firebird cameo white on red 400 4 speed
1969 carousel red firebird 455, richmond 5 speed
1964 gto pump gas, 505 IA2 EHeads, EFI, 92 mm turbo ice cream getter in process now....
1970 lemans hardtop, gto clone Atoll Blue
1972 Maverick powered by 2004 gto ls1 and t56 6 speed, 8.8, fox strut front end, wifes car
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