Bucket, look for the thread a couple down from this on... asking about a shift kit....

Try an allen wrench

Richard

Thanks fellas.
Looks like it will be pretty hard to do with the valve body still in the box,with the box still in the car.
I've just noticed the manual says to do it with the valve body out of the box,which is something i didn't want to take out.

Thats what the mod to the allen wrench was for, so you didnt have to drop the VB... its a tight fit for sure but it can be done...

That seems to be about line pressure adjustment

Installing a shift kit is like putting a cam in an engine,it just depends how hot you want it to be.The Trans-go "no-yo-yo" would be my first choice,with the TF-1 being the absolute hottest for a stock converter. Here, I got a zero buck trans secret for you. Most '70-up non-HP car trans don't even have the line pressure adjusted to "service manual" specs.You
need to drop the pan,and make the following tools;



The first pic shows an 3/16" allen wrench shortened to adjust the line pressure w/o removing valve body,it's a tight squeeze to clear the inner case,so keep grinding it down a little bit and checking. The "T" shaped tool is a gauge to check line pressure adjustment of 1 5/16"



Using the tool,adjust spring retainer,rotating allen screw counter-clockwise,draws retainer toward valve body,increasing line pressure.



If you'r NOT a tool junkie,who likes making the "perfect tool for every purpose" ,you can just use a 1/4" rod or drill bit as shown.An increase in line pressure causes the trans to shift firmer,and slightly increases shift points too.Are you feeling froggy?-then adjust inward another full turn or two,but check that you don't run out of adjuster threads. Some trans shops adjust them in futher than this but I don't recomend this w/o professional valve body mods,So if you find one like that,leave it alone.