Thread: rocker arm question

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i did used that cam 20 years ago in a 454 it did have some vac. ran with a box stock holley no playing with the power valves .i have used the erson 246/254 629/629 on a108 could have it moved out it may help on vac but the guy has it in a 496 i built him .no one never tune in the carb. there telling me it will work his power brakes ? i been told so it has some vac ?? .i have a used comp roller i was thinking it was a big cam when i pick it up .just was looking at it. i see how small it is . i will look at the number and post them if its some thing you can use. i sell it at a fair price