beat me to it.

They used my ignition system to do the dyno test.

They started the dyno test at 3000 528 tq 301 hp

I have a 26p bravo prop 4 blade.

I believe my check balls are still in, I will see and pull them if need be.

Wish I had access to a variety of props, but I don't.

I really appreciate everyones input and will try each and every possiblility.

1.50.

Was just freshened up with new bearing and gears

Is it possible the timing got bumped back somehow?

Do you have a timing tab on the engine/crank?

Uncle Dave

Timing was rechecked just prior to putting it in the water, Yes It does have a timing tab mounted on the frt cover. I also checked the TDC against the dampner when assembling the motor and it was dead on.

Does anyone have a recommendation on what spark plug they are having good luck with?

I also ordered an 8560 Hardin dist, just cause I'm not comfy with a locked out timing adjustment.

what is your timing? ....and have you checked it with a timing light as the rpm's increase?

Not enough advance as the motor increases in rpm will definately hold it back and keep it from revving.

Chris

Well everyone, I checked for air bubbles in the suction side of the fuel system, none, also have 0" vacuum on the gauge I attached. Do have 7-8 psi fuel pressure at the carb fuel pressure side. Replaced the distributor also with one that has weights, set the timimg at 8* and checked the advance, went to 38* at 2500rpm. Checked all the plug wires and replaced the spark plugs with new onesand gapped them at .050.
Now I have a popping through the carb off idle when throttling up hard.

Maybe a power valve? Did you have a backfire?

UD