The answer is yes you can get a shorter chain and gear set; Cloyes and others make them. The thing is you will need to tell them how short. Best way is to get a set of 8 inch calipers and measure from the crank shaft to the cam outside to outside, measure the crank and cam diameter, divide them in half, subtract half the crank, and half the cam and you should have distance between center lines of the crank and cam. For reference, blueprint spec is 6.12 inches.
