I own a 1991 Chevy Camaro RS, w/ a 305ci V8(LO3) and I believe a &00-R4 Automatic Transmission. It has about 200 thousands miles on it! My problem i'm having is that the tranny wants to shift @ around 5500 rpm. I slightly adjusted the Thottle Valve cable awhile ago, and shortly after I noticed the problem, but, no matter how i adjust the TV cable it won't change when it shifts. Is the problem the TV cable, or is the problem in the transmittion?