@Bodyperson
The gears were, and still are, 3.55. With your setup, I am guessing you will be at about 375 HP, maybe more. Do you think 600 CFM is enough carb. It will be great for driving around town and doing burnouts, but I think you are giving up at least 20-25 HP by not going with a 750. I replaced a 600 with a 750 on my 340, and it was a difference you could definitely feel. It was running a bit rich while cruising (gassy smell), so I jetted the primaries down a bit. The gassy smell went away, and I still had the whoomp when I put my foot in it. Just thinking out loud. Even a bone stock 340 had more than 600 CFM.