Do radial slicks hook better in the heat than bias?

I currently run a 12" wide slick and I think the widest radial slick is 10.5 or 11. I'd be nervous about going down in width. Also I don't know if they will go on a 12" wide wheel.
I have gone 1.39 on 28x9 Radial, when i switched i pickup at least 500 hundreds, and some RPM at the stripe, just a small burn out and your ready.