If I decide to cage the Ranchero, what size moly tubing should I be pricing?? Sorry for the dumb question but I haven't seen an NHRA rule book for years, just wondering if I maybe should make the car NHRA legal in case I decide to participate in motor contests sanctioned by a governing body other then the Hwy. 34 Bypass Timing Association. Got my driver's license back last month, thinking about trying to keep it this time!!!!!