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narling rocker arm shaft
ok i have question i have 390 fe with 12:1 compression pistons 390 heads that have had the valves takin out to 428 cj size and fully race ported triple springs and a 3 angle valve job ...im running ductile rocker arms and having a problem with the rocker arm shaft being narled where the rocker arms ride any ideas on how to fix this and why this is happening?
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