I have seen cars run single 4's in the BM/CM classes in division one and three. Asked Jim in IHRA if I could run a single and he said sure! I always call and ask before I leave from the great white north. Specifically when it comes to interpretation!
I have not run across any one of these guys that have been not helpful. Just call your division guy and get it over with, its easy!
Northeast Division (D1) Technical Director: Ryck Campbell
Phone: 315-335-8295, Monday and Thursday 7-9 p.m. (Eastern Time)
Email:
rcampbell@nhra.com
Southeast Division (D2) Technical Director: Harry Ferrari
Phone : 757-537-2763 Monday - Friday 9 a.m. - 9 p.m. (Eastern Time)
Email:
hferrari@nhra.com
North Central Division (D3) Technical Director: Joe Lease
For technical questions, call 844-468-7631 (844-HOTROD1), See hours at bottom of page
Email:
jlease@nhra.com
South Central Division (D4) Technical Director: Jim Anderson
Phone and Fax: 936-499-3065, Monday and Friday 7-9p.m. (Central Time)
Email:*janderson@nhra.com
West Central Division (D5) Technical Director: Bob Blackwell
Phone: 816-795-8055, Monday-Thursday 9a.m.-5p.m., Friday 9a.m.-noon (Central Time) Fax: 816-795-0515, Email:
bblackwell@nhra.com
Northwest Division (D6) Technical Director: Dave Schaffel
Phone: 306-374-3685, Monday and Friday 7-9p.m. (Pacific Time)
Fax: 306-477-7707, Email:
dschaffel@nhra.com
Pacific Division (D7)Technical Director: Pat Cvengros
Phone: 626-250-2295, Monday-Thursday 8a.m.-5p.m., Friday 8a.m.-noon (Pacific Time) Fax: 626-914-8963, Email:
pcvengros@nhra.com
I hope it cut and pasted ok....
Merry Christmas to all our friends!