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i recently replaced my uncles stock 69 roadrunner carb with a holley performance carb.
while we were tuning it (float bowl level, fuel screw, etc) i had an idea. when you tune the fuel screw on a car you're supposed to hook up a vacuum gauge and tune it to the highest vacuum.
why don't dirt bikes have this?
is it possible to add a 1/4 inch plate and drill a 1/8 hole in it to accept a vacuum fitting.

You are alway thinking Zak, you'll make a great technician someday.

lol yea thanks

zak13 wrote:lol yea thanks

i have never heard of doing that in a single carby, generally you do it on something with 2 or more carbys so you can set all the carbys up the same

but i have never done it so i'm not to sure