What grade fuel for LS2??
Look in your owners manual , I believe it says 87 or 89 I cannot remember . If i were you I would get a tune in your TBSS and if you get the right tuner you can up your gas mileage by 2 or 3 miles more per gallon and you can really start to enjoy the power of the LS2. The tuners can setup your tune for you to run what ever octane you want they will tune for it . The higher the octane you run , the more power they can get out of the tune .
Vector motorsports is a good one http://www.vectormotorsports.com/
Tune Tyme http://www.tunetyme.net/gallery.html
PCM4Less http://www.pcmforless.com/
These are all reputable tuners .
Another good site to get alot of info on tbss's is
http://www.tbssowners.com/forums/
Good luck hope this helps
Vector motorsports is a good one http://www.vectormotorsports.com/
Tune Tyme http://www.tunetyme.net/gallery.html
PCM4Less http://www.pcmforless.com/
These are all reputable tuners .
Another good site to get alot of info on tbss's is
http://www.tbssowners.com/forums/
Good luck hope this helps
