I need a good 4 or 6 point roll bar. What's a good company?

[Mustangbelle306]

Here you go:

http://www.nhra.com/contacts/tech_faq.html

A roll bar is required in any convertible running 13.99 seconds or quicker in the quarter mile, and in other cars beginning at 11.99. The roll bar is accepted in vehicles running as quick as 10.00 second e.t., provided the stock firewall and floorboard is intact, other than for installation of wheel tubs. The rollbar must be constructed of minimum 1 ¾ inch o.d. x .118 inch wall mild steel tubing, or 1 ¾ x .083 chrome moly tubing.

Looks like you DO need a 6 pter, maybe NMRA is different...? There are diagrams as well at that link.

Belle