That is what makes the biggest gains. The cam profile and tune should get it more gain than the 100cc.IMO u r lucky it was out of stock. I have a Tbird i bought new in mid '09, pre order bike. Have 80,000 plus on it now and got the BB kit at 12,000. Soon after it was installed the knocking started. If u haven't read about it the 1600s rarely have the issue but a lot of 1700s do because of the bore./piston geometry. Piston slap from most accounts. It's ruined my enjoyment of the bike for many years. Don't do it ! Even if your chances of not developing the knock are better then having it, it's not worth the chance. Second, the power gains are not huge at all and probably 90% of the gains are not from the extra 100cc but from the cams. If you can find a kit i would just put the cams in and run a 1700 tune. But do yourself a big favor and don't have the kit installed.
I've never heard of a common coolant leak. Are you sure it's coming from where the head meets the cylinders? If you're correct, then what I would do is reface both heads, which will increase the compression a little, then throw in the 1700 cams. I reckon after that you'll be really happy with it!That's just the problem, my bike has the infamous anti-freeze leak anytime it is ridden even moderately frisky (3rd gear, rolling on and off throttle from 3-4K rpm corner to corner)...EVERY SINGLE ride it looks like a elephant sneezed on my manifold behind the cylinder heads, I was going to finally have the shop mill the heads or whatever is needed to fix this problem once and for all and combine that with a big bore kit...I guess I will just spend the $$ to get it fixed without the benefit of an upgrade...seriously thinking about selling her and getting something else.
I agree. When I removed the exhaust decompression cams I had to disconnect the cooling system above the motor. After putting it all back together i had a very annoying leak where the hose clamps over a metal pipe. Had to take the tank off many times so I could try and get that leak fixed!!!Most coolant leaks are from the crappy cheap hose clamps - or clamps that simply weren't fitted correctly. I haven't heard of a common leak caused by an actual design issue.