Thanks guys. The timing was at 38 deg. We pulled hard down to 3500 with no detination on 91 octane.
JC PERF, how old was the damper that came apart?

Hmm. must have been a defect.

Nice numbers! Be careful with that 38 degree timing setting. Dyno and boat are not exactly the same. Particularly when running WOT for extended periods. I run a similar 598 using Dart 355 CNC heads, solid roller, 10:1 and a larger carb. It runs very strong at 32 degrees of timing. Good luck!


Craig

My Y2k had a procharged 500 in it at one point and they said they were running 94. Supposedly pushing 750 HP. If that's true.....well, you better wear a PFD!!!

PURE ENERGY, Race jackets on order!