Firs for those reading this that served our country; thank you. I am looking for a distributor specialist close to Cincinnati, Ohio that knows Flatheads. My distributor does not have the advance I am looking for and I had it apart and everything is free moving. No hang ups. I spoke with Joe Abbin in Albuquerque, New Mexico and he said I should have 20 degrees advance but I am only getting 15 at best. Thanks in advance for the replies.