I am looking for some advice concerning our max rpm. We have a 88 Supra Mariah with the 351. the prop is a 14 x 12.
At wot we are only getting 3600rpm and about 38mph. It starts and runs very smooth. I replaced plugs and wires and the fuel filter last year. I also checked the accuracy of the tach, timing, and that the secondaries on the carb are opening.
I have had this boat for about 2 1/2 years and am pretty sure it has always ran this way, but but was happy with it because it had so much more power than the IO's we ran around in. I really noticed what we were lacking when in a buddy's older mastercraft and could tell he had quite a bit more power.
I know the points are old and may have some cracks in them and I have no idea what dwell is and how to adjust it. Could either of these hold me back?
Thanks in advance for any suggestions you can give,
Derrick