i pull 1.9’s on stock rubber,didn’t take me to long to figure it out,and wit hdrags 1.7’s n 1.8’s are very very doable. Remeber…u are working with a supercharged car from the beginning,hell for a 34. sc pulley($20) Fenderwell induction($100) PCM(100) and “other” misc things(about 100) u can see mid 13’s,now throw drags in there and u coulde possibly see a 13.3 with just thpse mods,i have seen it.