It's all in your setup, Ernie. It sounds like you've got some fine tuning to do (though I am not sure how long your axles are going to last with slicks on the car).
Here's a 427 small-block Roush-powered SPF running high 10s (video of Greg Schroeder in his SPF).
http://www.youtube.com/watch?v=XmDd14eITU0