So I have a 18' 73 tahiti with a mild(400hp) 455 olds and a place diverter. I can cruise at 27-30mph @ 3k RPM. I really dont feel like building the motor, as I dont want to lose what limited reliability I have with a 455, so I was thinking of building the pump. My goals are more towards cruising at lower RPM than all out top speed, but i admitt, its nice to go fast. With all that said, I am going to get the pump rebuilt, and Id like to add a droop and a ride plate,(the one that does not require any maching) as that seems to be the next step. Any input? Is it worth the coin? Anything else I can do? Also, my pump is a 12JC-A. I plan on sending the bowl to jetboat performance for the conversion to a split bowl. Like I said...any ideas for more efficiency would be greatly appreciated. Thanks for the help.