What kind of gas and timing were you running? Also what chip?
Assuming your fuel system if up to snuff and you are using the stock ECM..... I would contact Eric at TurboTweak.com and tell him your specific buildup... and he will burn you a custom chip for $75. That also includes any revisions you want.
Meaning you can use a scan tool and record your passes (ie DirectScan), send him the files, and he will make the a/f ratio dead on.