I went from the B servo (stock) to the "A+" servo and noticed only a slight increase in "bang" going into 4rth. I would reccomend it but I dont think it will solve your problem. The TV pressure should be 35 psi already. I installed the transgo AOD-HP kit with the most agressive settings and the high rev governor. It shifts nice and firm.
How old is the transmission? The bands _could_ be worn ,as the man said, but... if it was a screamer before, then it should be a screamer now and you cant scream much on worn clutches.
A quick fix would be to keep tightening the tv cable a notch until it shifts as late as you want it to. Dont go too crazy or you will overpressure the system.
Did the guy implicate that he tested it? Was there oil inside the converter? That is the only way to test it is to drive around on it. If it was squeeky clean inside then I doubt it was tested. Maybe there is something I dont know, but I'm pretty sure you need to fill it up to test a converter.
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the car it was tested in went to 3100 before the tires would spin i would guess you should have gotten about 3000 with your gear ratio
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Gears have nothing to do with stall. It has to do with the torque curve of your engine. You want the stall to be 300 rpms below the max torque. Stock is 3000'ish. If he tested it in a high revving motor, he might have gotten 3100 stall from it while a less powerful engine might only produce a 2800 stall or so. TC selection is a pain in the @ss and somewhat of an art unless one has dyno specs, vehicle weight and gearing info and someone builds them a custom TC. Gearing is important for what the car can do with the torque from the hopefully locked up converter.
I say install the highrev governor if you havent already done so (you can do it with the AOD in the car, just pull the tailshaft housing). Then tighten the TV cable to get your desired rpm range. If still no luck, get upset, put your old TC back in and ebay off your current TC as a "kick@ss 3100 stall converter!" and charge $100 more than what you paid for it. =P
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91 GT Carb conversion, holley 600 double pumper, edelbrock performer intake, FMS "C" drop springs, march 1000 underdrive pullies, crane 1.7 roller rockers, GT-40P headers, bassani x pipe, american thunder catback, FMS 4.56's, msd aL6, trunkmount battery, A/C eliminator kit, 3000 stall tci streetfighter, AOD with transgo kit, A+ servo, 300M hardened lockup shaft, kevlar bands and 28,000 gvw trans cooler, 3 core radiator, 300 lbs stripped with a full interior
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