[gsharapa]

Jack,

So your May 2013 baseline was my carb's stock settings.

If I look at your last pull, they went to 71 prim/78 sec, kept idle air bleeds at 70but went to 40 high speed air bleed in the front and 33 rear and assume the front PV was still 4.5 at 38 total timing? Do you know what the A/F readings were at the low end 3,000 and WOT? Also, are you using Quickfuel jets or Holley jets? Assume it made it's best WOT power on that last pull........

Interesting the two where setup pretty close as off the dyno mine was 70/80s (holley jets) with the 70/33 air bleeds (idle/high speed), 4.5 pv at 40 degress. It appears to be too lean on the low end around 3,000-4,000 and I lowered my high speed air bleed down to 28 and made it much better than raised the primary jet (Quickfuel jet now) to 74 and secondary to 82 and seems to be close. I did determine last night that my power valve is blown but would think that would make it richer not lean down low.