What i'm looking for is the software for tuning a 95 firebird with obd1 computer and obd2 connecter in Speed Density.Is this even possible?
The motor is a 383,ported stock heads 285+cfm @.600 lift 53 cc chamber ,intake to match, comp cam .584in .579 ex @.05 242in 248 ex 113 ls, 12.45:1 compresion,42 lbs injectors.
This car is basically a race car,but i will Drive it to the track somtimes.

 

Same as any other 94-95 car. Tunercat and LT1edit are the usual options.

 

With that sort of combo I would get a good base line tune from pcmforless.com or madz28. Reason I say this is due to the higher compression and massive injectors. A mail order tune will run you around $75 from pcmforless and the ALDL cable will run you $95 from http://www.akmcables.com

Once you have a base tune to work off of you can tweek it to get a few extra tenths out of it.

You realy don't need a mail order tune if you know what your doing with the software. However, I will not be able to offer any help on the tune myself due to deployment(this is my last day of internet for a while). There are a ton of very knowledgable folks on this site though who can help you out on a personal tune. I can tell you though that they will want you to do some digging first and come back with questions. G/L!