i have a 2001 ws.6,6 speed. my best times on stock tires are 12.83 at 110 with 1.98 60 foots. at that time mods were, mti lid, mass air,160 t stat w/fan switch, b&b try flo cat back, pro 5.0 and free mods. NOW.... i added an asp pulley, r.g.r stage 2 heads and the hammer cam. still on stock tires i went 12.68 at 112 with 1.99 60 foots. i do NOT have headers or computer tuning. SHOULD I BR WORRIED??? i feel i should of went alittle faster.(headers are going on this sunday)i need to run in the 11's. any help would be great. thanks, mike.

 

To an extent, you are capping up about 12-15% percent of your max power running without headers or a free flowing exhaust. Another thing is that the 2001 programming is on the lean side with a so-so timing table and dosen't richen up well with modds.

Joe.