well my car had been running like crap and eating oil so i tore it down to find i had a broke ring in #8, timing chain was stretch badly, bearings had trash in them crank destroyed and to beat it all i pull my exhaust and found out that the previous owner used a pressed bent x pipe that measured 1.94" in the bends and the stock flow tubes welded to some 2.25 flow masters ! and it ran 13.04 @ 104-105 last time out but most people are running 12.50's-11.98 @ 110-113 with my setup ! so i hope with a fresh rebuild and my new exhaust 2.5 mandrel x-pipe, mac 1.5 flow tubes and 1 chamber flowmasters that it will pick up some !