My last hurrah! Bldg new motor for my classic 18 it will emi thunder exhaust alpha ss dual ram full hydraulic . It will be 400ci all Dart block aluminum heads and intake . I've done numerous drag race motors but not a marine . Also will be a full roller motor. Est. min. 425 horse . Will be dynoed before install . What carb do you guys like or could go with aftermarket edit. Numerous custom ego guys in Detroit . Any input appreciated . Thanks