My best time with my 91+ SHO 5-Speed was 14.7 in the 1/4. That was with a SHO-Shop Y-pipe and a slipping clutch. Tourqe steer was pretty fun at launch:p
The only problem I ever had with it was the Crank Position Sensor and scraping all of the skin off my knuckles while changing the 3 rear spark plugs
Don