I feel that the bores being both out of round and tapered started taking the pistons out from day one. I believe me getting them hot (240° in just 1 engine) accelerated the process, but the writing was already on the wall for them.

I might start a pro systems thread next so you can see that junk. It won't be nearly as long though, carbs are much smaller. Sometimes you just need to vent when you're writing checks you shouldn't have to for thousands of dollars

Maybe I missed it, but who ( what shop ) are we to avoid ?

I haven't mentioned it yet because I wanted to verify the extent of any other issues. I'd like some opinions on the pistons when I get the pics up. Very few people will know this guy

IN the end the answer to your question in RUN don't let this person work on it again.

Yeah. And I should have left the boat in Ca with you and sent the engines out for you to rig it. It wouldn't have saved the engines but it would've saved a bunch of other bs I went through with a few other people. But that's a different thread. I had one "professional" criticize the rigging that TNT did while doing work that would barely make it into the tech tips section of hot rod magazine

Sorry just had to mess with you a little LOL

That was another question I had, is there a twin to this damaged engine post #56 answered that,

I'll forgive ya because of the info you dug up for me about the boat. Plus if I ever win the lottery I'll need you to build me another of the damn things

Piston tops were uniformly black with no damage at all.