Originally Posted By quickd100
Randy, is that your 605? If it is drop the mufflers, leave the jetting lone and put on some slicks and hang on! The mufflers are killing it, with my small heads, 3-1/2" collectors, pipes and Ultra-flows in place it killed 117hp and 97ftlbs.Dave

Bingo up

Last edited by gregsdart; 06/12/16 09:27 AM.

8..603 156 mph best, 2905 lbs 549, indy 572-13, alky