T350 shift point
I'd like to move my first gear shift point up. Under medium throttle my transmission seems to want to ditch first gear too early. I'd guess somewhere between 2000-2500 max. This is a street car, so ideally what I'm looking for:
1)Light load driving (using only the primaries) let it shift low... goal is to get to third as quickly as possible for cruising/comfort. Seems to be doing this just fine but at the sacrifice of scenario #2 which is more how the car is driven...
2)Medium load (secondaries active) hold 1st to about 3000, which should equate to about 26 mph on 3.73 gears in the rear/26'' tires per the calculators
3)WOT let the kick down cable do the job, hold to about 4000 or 34 mph
How do I improve my intermediate load shift point? I have a tunable vacuum modulator but it came with no instructions. I think it has a screw inside the hosebarb fitting on the end that can adjust the transmission but I'm honestly not sure what it will affect or how to do it.
1969 Camaro 383
2.02/1.63 & 234/244 Vortec
TH350 / 12 bolt 3.73