# Finished the Cobalt SS Tune **URL:** \ **Category:** PittSpeed Automotive\ **Created:** [July 17, 2008, 5:12am UTC](https://forums.speedlife.net/t/finished-the-cobalt-ss-tune/198571 "2008-07-17T05:12:34Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![Dominator](https://avatars.discourse-cdn.com/v4/letter/d/a4c791/32.png) [@Dominator](https://forums.speedlife.net/u/Dominator)\ **Post date:** [July 17, 2008, 7:49am UTC](https://forums.speedlife.net/t/finished-the-cobalt-ss-tune/198571/4 "2008-07-17T07:49:22Z")
> [@Building a house..](https://forums.speedlife.net/t/building-a-house/37122/42): > > A/f ratio is 12 which the dyno guy said should be fine since i have a return fuel system i dont have to run as rich. help me understand cause I’m stupid. Whats the coralation? Although 12:1 is actually a little chubby on the fuel side, why does he elaborate why it can run lean when its not? What does having a FPR that mounted outside of your fuel tank change? and why is his wife a bitch? Nice torque though! --- _[View the full topic](https://forums.speedlife.net/t/finished-the-cobalt-ss-tune/198571)._