vacum

He i want to know more about tieing off a few coils on vacum springs? I assume it gives better response, who has tried it, and whats your results? Also drilling slides? I have a stock jets, right now my stock needles are shimmed but also have factory pro needles, i have a stock box with a...

I've got an extra vacum port on the left front carb, over the throttle cable plate, under the vacum chamber cover, points down and back about 45 degrees. No hose for it that I can see. Nothing said about it in the manual. 1985 model. Should I just cap it or what? :ummm: Thanks

I am thinking about putting more NOS with my progressive timer expierment. Along with that idea the timing needs to be ********. The question / questions are. How many degrees does the timing get advanced as RPMS increase? I am assuming that the timing is only advanced by vacuum? Does the...