Wanted to make a G/C Jet boat thread. Anybody running an overflow dump for pressure concerns or in the stock form is it even unnecessary? Also, thermostats? My jet read off the charts hot this summer (on the gauge) drained and flushed block but can not seem to find the gremlin. Even with a temp gun, nothing really concerned me, manifold elbows ran the warmest around 220 after some WOT passes. Also, anybody have an impeller for a 12JE, I am only getting 57 out of my 460 and there is a cvx 20 I’ve been in that’s running 70 with the same set up I just don’t have the MSD kit.
Cheers, happy holidays.