New Engine, 5.7 Chevy roller, 1Hr on it so far.
I'm experiencing rattle noise starting from 2500RPMs and above.
Running Rochester Quadrajet, No water in the water separator (OE Mercruiser), New plugs .035 gap, New wires, New Coil, Timing set 8BTDC, Running Mercruiser OE oil and filter.
Engine...