has anyone intalled the Kickdown valve so the car will shift into 4th at WOT...anyone have this valve with a shift kit?, any issues or problems, I"m thinking about ordering it and having my transmission guy put it in while he's doing some repairs...is it reliable?

 

Are you talking about the TV Valve? Or the 4th gear valve on the other side of the valve body?

I got my TV valve from a guy who custom made it at work on a lathe, so that it wouldn't downshift from 4th into 3rd untill 95% throttle.

As for wanting the full throttle upshift into OD, you will want the "B-Car Fix" I have the part # somewere. It was $20.00 at the GM parts counter. I have heard pros and cons on it because some one would install it and it wouldn't shift into OD for them. However, I believe this may have been from the combination of a 2.73 gear, and not enough power to get to the shift point (depending on the vehicle, 4500 to 5500 rpm maybe). With a 2.73 gear 4500 rpm would be around 115-125 mph in a 3rd gen, 5500 would be between 140 and 150 mph. With a stock tbi 305 or a stock LG-4 you are probably not going to get up to that speed in order for the tranny to shift into OD on its own.

My TA has a 3.73 gear and a carbed 355, will it shift into OD at WOT? Maybe, but I am not done with the car yet and have not tried it. Don't think I will either.

 

i see...well, now I"m hesitent to get it...i will be getting 3.73 gears and i already have a shift kit installed...i will have some engine mods but i was hoping to hear from more people that installed the valve and whether it actually shifted into 4th gear properly...