[Horse]

we bolt all the head tubes to the motor then trace them with a pencil or marker- (on the inside of the side rocker panel) this formes the rough shape and then start with an 1/8 inch drill bit at the center of the traced pattern, and go from there-
take your time and go slow- you wont make too big of a mistake if you only go by mabey 1/2 inch hole increments- like I said before- go slow and start small- its easy to take out more, not so to add