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Thanks grim reaper, casting numbers show this as a 67 273 2 barrel motor. Plan on pulling that cam soon

Thanks for the ideas guys, I have not pulled the cam yet but that's my next move, the rockers don't hit the valve covers because It still makes noise when the covers are off. Does anyone know what the stock duration/lift specs are for the 273?

so I've been working on restoring my 67' cuda fastback for a couple years now and we have ran into a standstill on the valvetrain issues. From what I was told when I bought it, it was overhauled but the work was less than reputable (all main bearing bolts were hand tight) and I cant seem to find...