Derek,
How about you take the CMA procedure:
Check Measure Adjust (CMA)
http://www.scatliff.mb.ca/pelican/MFI_Check_Measure_Adjust.pdf
and the extensions I posted here:
“MFI thermostat spacers”
p. 1 end has CMA extension, p. 3 has nozzle, fuel flow, and fuel pressure.
http://forums.pelicanparts.com/showthread.php?threadid=169445
and post a CMA Plan for yourself. Let us critique and expand it for you. Having written a plan, you will find it even more useful and others will benefit.
Give us a run-down on the MFI tools you have accumulated.
How is the engine and MFI now?
Yes, the part throttle is necessary. It isn’t free-rev with no load and it isn’t heavy throttle acceleration. It is best to repeat in 2nd, 3rd, and 4th gears. Second will tell you the most as 3rd and 4th are more throttle at the same RPM. You should do this on a long, flat road at constant throttle (not accelerating or decelerating.) If running too rich – the usual case - between tests a little sprint may be in order.
Best,
Grady