Shift Kit for a 727

From a smallblock equipped early 70s van,the valve bodies are modified from the factory.There are some of the check balls removed from the factory,and a few of the holes in the valve body plate are drilled larger than a car valve body.The only thing you have to do to get the tirescreeching second,and third gear shifts,is to turn up the line pressure,drill 2 of the holes a little larger,and take out 2 more check balls.I did this to the tranny i pulled from a 73,3/4 ton van,was equipped with a 318 from the factory.My tranny has around 300,000 miles on it,and yes,it will still scratch second and third at wide open throttle!