I had been running a factory unit I recurved myself for over a decade. Worked great 👍, but I used JB weld to limit my mechanical advance stops (before I had a welder) and the jb weld started cracking a coming loose. So, I finally broke down ad bit he MSD Bullet. I'm happy with the MSD so far, but only been running it for a week tho. They've gone way up in price recently.. but with MSD's proven track record I figured it was worth the investment. The Pro billet distributor is definitely a quality piece.