i had a mail order tune from madz28, he just went off of that original tune.

 

We're all assuming your 3600 converter locked up. You should get WAY more than 320 rwhp. I get 315 rwhp with my basic bolt ons and stock cam. Your A/F is too lean. Your dyno shop should have done a "test run" to check your ratio, before making any runs. I'm surprised they made any runs without fixing that first. It could damage your car to run that lean with load.

 

You should be at 14.7 A/F at idle, so that sounds right. Seems like the guys with the dyno don't know what they are doing.

Dan

 

where still finding power in it, but it got so damn cold that we decided to finish the tune another day when its warmer. after i get done being tuned, im going to another dyno to see where i stand. if i go there with my cobalt and it makes less than 270 off nitrous, ill know theres something wrong with the dyno