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I personally have had WAY more roller lifter failures than I have solid cam failures.




then there is another problem that has not been addressed like not enough spring and bouncing the lifter off the lobe.





Or being cheap and not wanting to buy new ones.




Ok maybe that


70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake

best so far 1.212 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4