I think all depends if you ride in sand with paddle tire's with a high output motor start worrying about chains. 1 year ago called sidewider wanted 365.00 tri-moly just for the chain. 140.00 rear sprocket tri-moly, front sprocket 47.00 you gotta be kidden. That's $582.00 their outta there minds.
A friend of mine had one when they first came out brand new. I had my threewheeler honda 350x he went by me like I was sitting still. That f---er was quick i rode it. But in the turns bye-bye he didn't have a chance with a threewheeler. A well tuned pipe banshee ain't gunna have chance it take more than pipe banshee to beat it. IMO
That set up would be good for the riding you do. I had 2into1 I had alot fun that motor. Had a mild port job it was rated at 65 h.p. thats all you need for that type riding. Plenty of power
You gotta be set up to do it write. Crank fixtures dial indicators & checking to make sure it's in faze. Send it to Jeff. It's not that exspensive have it done write. If it's not done write or that bike will ride like an old shopping carriage. Thats if it starts if it's out of faze. You got some dude that smoked a joint on the line that put your crank together. I'd have i it checked and done write. IMO The guys that did it on their owne with out the tools GOT LUCKY
RPM racing had EFI kit a few years back about 7 or 8 years ago for the banshee. It was on the market. Not sure what happen with this. I think cost about 4 grand at that time. You had to send the motor to them they would set it up with the electronics & throttlebodies. It wasn't a kit do it yourself. They guarantee 140 h.p. on stock motor. They recommended no porting. Don't need to. No benefit buy doing so. So they claim. The demo they ran up Oilsmobile hill 40 runs with no problems hopeing the trannies would hold. Like I said before not sure what happen with this mod. My 535 got more than 4 grand in it.
You want something beefy for fast trail riding. Stay away frome light weight drag A-arms for trail riding. You want to buy this stuff once. IT"S EXSPENSIVE