I installed a T124 in my 01 Dyna in 07/Aug. Right from first dau it wouldn't start reliably. Left stranded a couple of times, backfiring broke three teeth off the ring gear. I put it away in early Oct.
The next spring I contacted S&S, they first said I'd have to take it to an "Authorized Service Centre". The closest is in Montreal, 310 miles away and I don't speak French.
I told them we did have an S&S Sales dealer here. I had to contact him, they sent him an authorization to return the Ignition Module. They stepped up, paid for all shipping at overnite rates, called me two days later to tell me the module was being replaced, already in the mail to the sales dealer. In four days total, it was back on the bike, bike has started and run no problems since. The bent valve, broken guide, could also be the fortelling of damaged combustion chamber, damaged piston, possible bent connecting rod. I believe they will insist on the motor going to an "Authorized Service Centre", but they will stand behind it 100% I'm sure.
Really sorry to hear about this mishap, I lived in Calgary for 20 yrs, know about the short seasons. I feel for ya bro'. windwolf