I agree with the others on this site, Increase your stall and change your rear gear to a 4.56. Really I think if you increased your tire to 30 inch and your rear gear to a 4.88 would even be better. A taller slick seems to work better if you have the gear to pull it. Remember you make et in the first 330ft. The higher stall and gear should be worth 3 to 4 tenths, and you can probably tune 2 more to get you in the 10s. The turbo 350 does have a lower low gear but its much heavier and robs more hp than a powerglide.
good luck