mech fuel/raw water pump upgrade
 

I have searched but it is unclear to me.

I have a 454 330 with trs and it has the raw water/ fuel pump assy. the previous owner installed an electric fuel pump and just removed the fuel lines... not sure why. I plan to service the raw water pump and didn't know if there was an upgrade or if what I had was good or if I should switch back over to the mech fuel pump.

you can use the top diaphram of a holley mechanical. you will need to use the armeture from your existing pump.

http://www.offshoreonly.com/forums/s...=sea+pump+fuel

Allot of information on this subject in the technical section.