I have a 700r4 I am in need of answers. I have a 300psi pressure gauger hooked up and checking pressure readings, in park with the TV cable not attached I get a reading of 130 to 140, the needle bounces between the to. When I put it in reverse it drops to 60 for a second and jumps to 225 and bounces between 225 and 240. If I put it in drive, does not matter which gear it stays bouncing between 130 and 140. no pressure change. If I hook up th TV cable and adjust for the 3 to 5 psi and recheck the pressure readings they are all the same as mentioned . Just a note this trans has a corvette servo and a aftermarket accumulator spring. No I did not install any of the parts, it's a trans I bought from Jackson Performance. The trans seems to shift OK but I want the TV cable adjusted correctly. Can anyone give me some input.