Have 7260 joints in my old Duster. Leaves hard with 1.40 60 fts. Just Built my low 11 second Barracuda and used them in it too.

Any quicker then that I would go with the 7290's

67 Barracuda street/bracket car 11.27-119
68 Dart 502 BB 8.70s-152
414 cid SB Dragster 7.65-174