The max CP, stock, on all 750s and 750Fs (that I am aware of) should have been 1300 mb. With later version ECUs (and you might also need the later start box to set this), the CP was settable to values lower than 1300, in increments of 100. There is always a possibility to have a bast_rdized one that was set at the higher 1400 mb power level (I ran one that way for a season, good power but shorter bearing life). Never heard of anyone running one higher for any time period.

If I remember correctly, the serial number of the 750Fs had an !QUOT!F!QUOT! in it. If it does, that means that it has the !QUOT!fuel in the oil!QUOT! mod and you do not require the additional oil tank. Might be best to double check with Carlos before running without a separate oil tank.

As for the low CP, my first guess would be a weak pump (or some sort of fuel restriction that is causing the output of fuel to the engine to be low), then weak battery. If you want this ironed out with little hassle, send it to Carlos at RTI. If you like to tinker, try swapping pumps or check to be sure the NiCads are up to snuff.