502, 850 Holley DP 80443.

Mild build ~ 540 through the manifolds.

Here is the combo for reference.

-Gen V 502 converted to roller (basically the cp performance conversion "kit")
-Basically stock bottom end with, crank turned .010, stock rods, stock pistons .005 off the heads and block to square everything up align honed etc. Bumped the compression to just over 9.25.
-scorpion full roller rockers
-088 heads, no porting, but port matched with comp cams springs retainers etc.
-edelbrock air-gap intake, shaved to match the head and block decking
-850 holley with HP500 flame arrestor, down one jet size on the secondaries from stock holley 80443 marine.
-Bob Madera custom cam LOTS of lift, mild duration.
-DUI 7000 Series stand alone marine distributor, no boxes for this guy...(deleted the damn spitfire engine management system)
-Stainless Marine Manifolds with standard risers
-assembled by Detroit's best kept secret, American Engine and Machine