Recently installed a new 1998 GM crate 5.7 L vortec engine in boat. Old 1997 5.7 L had 2 barrel, 12 bolt manifold(non vortec) so I went with edelbrock air gap manifold with a 600cfm edelbrock marine carb. Replaced oil pan with marine one(1 quart more capacity than stock). Pulled stock hydraulic...