Might be the cam was not broken in correctly? Pop the valve covers and watch each rocker arm as you hand turn the engine. Maybe this helps out. Good luck!
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1970 T1 W/MassIVe 2913cc RAT/?EFI? w/direct fire (very soon) and 915 trans
1962 SC 1776cc SP 944NA brakes, 993 wheels
VKG
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