Proform 850 dialing it in closer

The Demon carburetor will not be in my vocabulary here.

So i when out to our track for some testing.
the air held between 93 and 9400 foot all day.

The ET and 60' have nothing to do with my testing as this carburetor, 60 foots so much better, that there is just no way, of getting it to hook, on a no prep surface, and was not the reason for this outing.

The first 9 runs, was testing different shift points and really didn't show much improvement. but now, i am shifting at 6000 rpm instead of 5800.
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So after all of that i when for timing. timing light showed 22/36.
Decided to leave it there.
Drop the jets 2 numbers front and back Made another 3 runs. Picked up 1/2 of a mph. Pulled plug and it didn't show any signs of pepper.........so drop it another 2 jet sized and when another 3 runs......Picked up basically another 1/2 mph. So at this point i put my son in the car to hold the o2 sensor and the gopro to get a full pull o2 reading. Did two pass with that.




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Then kicked his *** back out of the car, because he slowed my MPH. Made one more run in the right lane, that is the best lane because there is less bumps. Was .200s mph faster.
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Ran out of time, but was temped to drop the jetting some more..... I'm down to 70 in the front and 80 in the rear.(has a front PV)
I installed a new spark plug before i made these 15 run. this plug is not a "clean kill" plug. and i didn't pull it out of the car until i got home.
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The black at the bottom is .150" wide

#1 do you think its still a little fat?????
#2 do you think the MAB is good or what would you change.
The video is tough to keep up with........I may make a slo mo of it later, but you loose the sound, and can't tell when i shift from each gear.

I guess i had better put this in as well
408 Hyd [email protected], 243/247 .562/.550
12.8 compression
4200 stall
4.56 gear
28/10.5/15 M/T slicks
3860 pound car.
6600 foot elevation.