That bike is built right. 787, carb, override, no nitrous. He's ran in the 3.8's on that bike, I believe it was at Little Sandy?
Like as stated before, it's just a matter of time until the 4-stroke quads start running sub-3.6's. EHS Racing has a Raptor motor running in the mid 3's.
I've been amazed at what my little 75hp Raptor can run against. TQ wins races...
There's a handful of full drag 450's that go out there regularly. Just because they weren't there when you were at the dunes doesn't mean they aren't around. Lots of fast 300ft drag Raptors and 450's out on the East coast.
Obviously there aren't as many drag 4 strokes as there are Banshees... But still. There's a lot out there...
The 'mil' means longer crank... Like a 4mil Serval would have a 4mil stroker crank and Serval cylinders. Cheetahs, Cubs, DM, DMX, Wampus, etc, are all types of cylinders. Twister makes parts, but also has their own line of cylinders.
I've had luck getting messed up balljoint threads fixed with a thread file... They weren't very screwed up, but enough to not make the castle nut want to go on...