ok.. well.. i started out with 37psi base pressure, which is 13 turns out on the sfmu boost valve, my fuel pressure at 12 pounds of boost was way over 100 and it was sputtering.

2nd run, i dropped the base pressure down to 22psi of fuel and turned the boost valve out to 15 turns. at 12lbs of boost i was still smacking 100psi very quickly. it was sputtering.

3rd run, i turned the boost down to 10lbs and left the fuel the same. i smacked 100psi of fuel, but then it backed down to about 95psi of fuel and ran good. but it still did sputter some when first going.

when i checked my 6lbs of boost setting it was doing 65psi of fuel pressure, egts were perfect and the can ran great, no sputtering.

does anyone have any suggestions on what i should do here? i have a feeling the 12:1 disc is in the sfmu. does the 8:1 make you run more lean? i think thats where i need to head.

thanx for the help.
James