Why would exhaust go out intake manifold new build?

Ford 302 new everything, not bored just honed

Cam phasing wrong, excessive lifter preload, timing is off, extremely lean mixture, very low compression; top rings bent due to twisting onto piston during install; etc.

camshaftshaun@gmail.com

Tight valves, run a compression test first to be sure or do a leak down test on all cylinders

Loose oscillation adjustment screw, or your cam timing is off

The engine is not timed correctly, like the cam is out of sync

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