Trying to jet my 2.7 motor after a refresh. Its been some time since I had it sorted out and running well. I cant find my old notes. Its a 2 hour old 2.7 motor 10.5 comp. web cam 120 / 104s with 40ida 36 intake ports PMO manifolds, headers and 2 - 2 chamber mufflers, MSD box with the distributor @ 30deg total after 3000rpm @ about 2050 lbs total weight - I can't recall what I was running in the way of main jets so I started at 150 on the mains leaving the following in place: f3 tubes, 185 Air Correction and 55 idle jets with 36 mm vents / Chokes installed. It idled nice at 900 rpm but sputtered after 5K. After rechecking everything I started carb tuning - I have worked my way up to the largest jets I have - 200s and its clean now to 7500 rpm and the plugs are still very clean (bosch range 8 conventional)
This seems like a lot of jet based on what I have read lately - does this sound right at all ? Does anyone have a similar set up? Based on the plugs and I feel I could still go higher. I am reading the plugs after a few minute drive back to my house at no more than 3000 rpm.
