i had to change the ratio on the bell crank by the #3 cylinder. you can do this by removing the forward ball, drilling a hole maybe 1/4-3/8" lower, and reinserting the ball.
you have to be careful removing the ball, and you have to drill the hole with tight tolerances. after inserting it, you will need to mushroom the backside of the ball post. you can also purchase the balls with threaded posts w/nuts.
it's not the prettiest thing, but it gave me what i needed. this will give you less mechanical advantage with your foot.
another thing you could do is change the offset on the bellcrank that is on the side of the tranny. it is currently about 100 degrees between the two axes. it should be about 70 degrees for maximum efficiency. however, this will change the length of the diagonal rod that runs from the tranny to the carb by about 1" (longer). my diagonal rod doesn't have that much adjustment left.
good luck