I am working on my 69 RS with the 700r-4 and finally getting to do a little tuning. When I pull out and get on it it pulls hard to 6000 and shifts to 2nd, pulls hard to 6000 and shifts to 3rd, pulls hard until 4500 and then it's like it goes into neutral. The tranny was a hi-po rebuilt when I bought it(specs--late production 700r (30 spline), .460 boost pump, Vette servo, top of the line band and clutch packs, 2800/3000 stall 10" T/C). I have tried to move the tv cable to see if that was the problem and all that did was move the rpm up a couple of hundred when it hits neutral.

I have talked to a GM tranny guy and after about 20 minutes of back&forth conversation he says that the valve body is the culprit. He checked the tranny for me when I first got it and said that it was set-up strictly for racing and he softened it up a little for street use. He also said that there was some stuff done to the valve body that he hadn't seen before(stuff missing,lighter springs,etc). He says to bring him another "virgin" valvebody and he will add a shift kit and set it up the way he would have initally.

Anybody got any ideas? I am using B&M tranny fluid, have a deep alum. pan, and set the tv cable with a gauge from 700r-4.com. It also does the same thing under normal steady driving at the same rpm. I haven't drove it in OD since discovering the problem, didn't want to skrew anything up. I have checked the fluid, no smell and still so clear that you can bearly see it on the stick(B&M is blue color)

Thanks



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69 RS Camaro (383,700R-4,12-bolt w/4.11s)
79 WS6 Trans Am (406SBC,factory 4-spd,3.23 posi)
87 GTA Pace Car Clone (350TPI,700r4,140k miles)
97 Bonneville SSE 40th Anniv. (3800 V-6, Power Everything, The little woman's car)

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