haha...well, i've searched and searched and come up with a couple different answers...the truck i just bought has a mallory ignition/distributor with vaccuum advance, and the vaccuum port on the dizzy isn't hooked up to anything...does this mean i don't have any advance???? and this is bad right??? may be making it feel like it's got no "go" really. lower RPM's seem to be ok, but when it gets up there...there is more to be desired... i have a holley carb and can't find anywhere to hook it up to like on my edelbrock if i asked some dumb questions, don't call me a window licker just yet...as carbs are new to me...but i am learning alot thanks to ya'll....thanks!!!