Here's the Summit link for the M/T front runners
http://www.summitracing.com/parts/MTT-3007/
I'm running these: http://www.summitracing.com/parts/MOR-17026/

From personal experience I'd stay away from mixing bias and radial even at the track

70 Dart Swinger, 2850 lbs
SB 408, Bullet roller 264/268 @50 .636 SSDS stage 2 Edelbrock heads, 1 7/8 Headmans, 1050 dominator by Dom, 9.867 @ 133