gear heads help
 

woops, intended Formula forum but same applies


not my formula, but my old boat i am trying to sell.


89 454 carb engine
blows big time smoke out starboard side exhaust,
open pipes, not twined.
only after high speed run, then shut down and re start.
doesn't smoke without being turned off.

no blow by on crank vent in valve covers, either side
i am hoping valve seals on one bank.
waasss up

If you do a leak down you can listen when the cylinder is pressurized to find where the leak is. Sounds like valve seals.

How many hours?