Dave Pinardi. never really used these threads before but find it interesting so i'll give it a try. Im new to Jacksonville (NAVY) and would like to get advice from other 'stang lovers and learn some new things. Right now runnin 1993 gt 351 heads supercharged and much more. Rebuilt heads up and am now having detonation problem, pretty sure it is out of time but can not see timing marks because there is too much in the way. Any advice would help.