Ya I have one of manics intakes. With my New reed valve mod and my cns carb, I cannot use his. I cut it even shorter, but my new cards bowl sticks down lower than stock, contacts clutch.
I was looking for more of a shorter stock one, I like the citting and using a hose idea. But I found one that will proly work. Its a intake that instead of going up, it turns out and puts the carb just outside of frame, above the gear box. Should work out perfect. Ill post a pic when I get a chance.