Looks great Leo. I think with a slightly longer belt you will be in great shape. I just staple the belt tag to the inside of one of shop cabinets so I never have to measure it again. Walk in the store and tell them the part number and walk out haha. I really like the Gates belts. Cost a few bucks more but mine looks brand new still. As you are right the pulley alignment is spot on with this bracket. If they would make one with the holes predrilled for a 409 they would have the market cornered. No better option for a 409 with headers that's for sure!