Smart move! I've read many horror stories of burned up 700R4 and 2004R transmissions due to improper TV cable adjustment.Fortunately when I had my 700 built for high hp I also had them make a constant pressure so it will never burn up from the tv cable.
The best way to be sure is to use a 0-300psi transmission pressure gauge to check the line pressure as you move the carb throttle from idle while the engine is running and the TV cable connected to the throttle bracket.is there a way to tell if my 700r is built as a constant pressure ?
Your measurements seem ok... but without knowing the angle of your geometry corrector bracket at idle (since idle position is not a constant), I can't say for sure if your measurements would work.Not a very good drawing.I am trying to make a hookup for a holley and this is the dimensions I think are correct to make it. Mount it on carb, line up base, set linkage to idle point, pick up throttle center and step off these dimensions. Would like to know if these are correct.
That is very similar to what I did when I made my bracket. The circle in the middle of my cardboard template (without any holes) represented my throttle axis. I then took my verniers and measured 1.120" and drew a radius line out from the throttle axis (you can just notice the pencil line that intersects the TV pin location in the image below). Then I used the GM diagram to locate the correct placement of the TV pin.I bought a Holley adapter for my Fitech efi. It does not put the transmission cable in the correct location. I sent it back and made my own. I printed off the drawing like what is shown above and cut the paper off to the right of the vertical and angle line. I had a punch mark for the throttle blade axle on my adapter and had the vertical line 90° from level. I scribed a line to follow the angled line of my paper cutout onto the adapter. I used my Vernier to accurately mark off the distance. Prick punch the intersecting lines and I now had an accurate location to finish off the adapter. Works perfect.
If you already have an adapter on your car you can print the above diagram slightly larger and measure off the 1.094 -1.125" measurement. Cut the right side of the line and compare it to your setup.
Below is a link for the Jegs version of the 700R4 TV Geometry Corrector (kick down) bracket for the Holley carb.... but I advise NOT buying the one shown in the link below for use with any GM 700R4 or 2004R transmission.
The reason is that the Jegs bracket is an old design with incorrect TV geometry (shown below on the right).
The newer (Holley) version has the TV attachment pin lower and closer to the bolt hole (shown below on the left).