Can you steer me towards a reliable one? For commercial boat not for speed
Do you realize that the cost would exceed 4000 if you were a do it yourself person. Your probably better off taking components from a dead engine and mouting them to your 305.
Holley Marine Commander 950 MPFI Systems - JEGS
And look what you can get for that same 4000. NEW, not remanned 5.7. 5.7L Vortec marine engine-SILVER Package (1967-2010 replacement)
Hmm yellow wires too....
Your point being?????