That 91 octane and i did the stock numbers with the same tank.
That 91 octane and i did the stock numbers with the same tank.
Another question: with the LS1 and LS2 can i tune my truck like there's tunes: Example AFR, spark, timing, Etc.....
Last edited by 06-6.0 SierraHD; December 1st, 2006 at 01:26 PM.