I dont have the slip no more it was from like april, but I think it was between 84-86 I cant remember. I going back to the track this weekend tho. I gonna put on an MSD external coil and an SCI ingnition controler to I hope that my DRs are in Sat morning. I got the BFG g-force drags. On my LS1 I used the Comp TA DRs and they were great. only lasted a short time though