Hi all, thanks for all the suggestions on solving my stumble/pig rich running problems. After reading, thinking and pondering, and realizing that since my stumble started almost exactly at 2500 RPM, WOT or easing up to that, it had to be ignition related. So after new coil and module didn't solve the problem I knew it had to be power. So I jumpered wire M (third wire from left) on the CCCI harness directly to the alternator stud, took it for a spin and oh was I in for a suprise! Tires immediately broke loose and almost spun a donut turning out of my neighborhood. So much power and very very smooth! It should be included in the sticky instructions for 86/87 CCCI upgrade that it absolutely has to be hotwired because the 84/85 engine harness has a resistor that won't supply enought power for the 86/87 CCCI. Anyone who having stumble/bogging problems should try this when searching for a solution. I'll probably wire in a relay tomorrow so the CCCI isn't always hot (even though I don't think it'll be a big problem). Thanks Again!