So I put a Non-CB engine into my 89' Daytona. I used the head (89) off the car on the new motor. I swapped out the Round tooth cam gear for a Fidanza Adjustable Square Tooth Gear. Now I was wondering if the gears are the same other then the obvious teeth. Would putting the square tooth on have it retarded? I have some issues with low vac and being a dog off the line. I was hoping that this could be the issue.