is there an advantage to using a billet set with torrington bearing versus one without the bearing ? non roller hyd. flat tappet turning 6300 to 6500
timing chain question
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Only if you plan on Zero Lashing out your front to back camshaft play with a torrington cam button up against the cam cover.
Sometimes it also helps if you are trying to zero out vertical run-out on the timing chain from the crank gear up to the cam gear. A couple thousands can vary your timing 2-3*@ 3500 rpms, .005" can get you 5* or more @3500 and 7-10* at 6500.
604's run a stock cast gear set-up and they last a season or more.
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