Scott,
Thanks for asking. I decided to hop up the 80" Evo rather than bore and stroke it to 96". I went with a mechanic named Mike Magaro out of Harrisburg, PA (about 90 miles away from me). He did the work over the winter. Mike was recommended to me by a few people, and I was very pleased with his work. He sent the heads out to Jim Libonati at MegaFlow. Since the build, I've only put a little over 2K miles on the it, but there have been no issues. I have not yet dynoed the bike, so I can't give any hp/tq numbers, but there is a noticeably great feeling of increased power, pull and FUN shifting thru the gears from idle to 90-95 mph. Messing around on the local interstate, I've gotten it up to 105 mph, but from 97 to 105 takes some distance/time. Suppose though, if it accelerated from 90 to 115 mph as quickly as it does from 70 to 95mph, then I would enjoy that as well. It had some left at 105, I'm guessing to @ 110-115 mph max, but I caught up to traffic and had to back off. I see the Ultima 127" in one of Magaro's FXR's, and I do wonder what the ride would be like on it. Anyway, here are most of the specs on the 80" hop-up build Magaro did,
KB 9.5:1 Pistons
Adjustable Pushrods
V-Thunder 3000 Cam (my choice not his)
S&S Super E Carb, switched petcock/new throttle cable
K&N Air Filter
Heads by MegaFlow
SuperTrapp SuperMeg 2 into 1 Exhaust