i have an 89 LO3 with a 700r4. everything is stock except i have a 2.5" dynomax catback, gutted cat, open element intake, 125 shot of nitrous, good sticky tires. id like to know once i get this running on the street what will i finally be able to keep up with? btw ill be spraying 3k-5k rpm range

 

Well you should put near 260 to the rear wheels, so with good traction and a nitrous tune and a launch mid-high 13s shouldn't be a problem. Get some headers and a 3" catback and you'll see some huge gains, as well as TUNING.

 

On the juice you will be in the low 14's and maybe high 13's. Off the juice you will run in the low 15's.

 

LOL, not much

 

ok thanks guys i was just trying to get a ballpark estimate here except this last guy above me. anywho im just looking for a little revenge and i dont wanna look retarded if i still lose to who ive lost before to.

 

The guy above you was being perfectly helpful. He was only telling you that you won't be able to keep up with much at low 15's. You're not going to use the juice every time you race, so don't have low 13's in your head, have those 15's there. Plenty new cars'll definitely make you look silly, and some, even with the juice.