crossover

My '01 340 requires the crossover switch to start the Port side even though it has a brand new battery on that side (?). I recently tested all the batteries resting voltage / parasitic draw, alternators, charger, connections, etc. and everything seemed to be fine. I do have a sticky solenoid...

Several post about carburetor vs fuel injection, performance and efficiency, definitely some advocate for MPI and other love Carburetors.. and the undecided ones.. I think I will have the answer (at least I will have it soon) Here we go! I'm schedule to do a general maintenance and clean up...