When it comes down to the bigger bore its, a lot of the times you have to be carefull not to over rev it, which can be a pain when you get the occasional 1st-neutral mis-shift. And with the valve clearances, a lot of people would tend to stick with the .430 cams, and mid range/all around cams. My cam is a .450 cam, BUT It's ALL top end, and Very little if any in the mid to low end. And I want to swap mine out for a mid range/all around cam, most likely a .430, or around there.
I bought mine used with the cam already installed, and I don't think they guy knew too much about the output of the cam, and different setups. Now I'm going to end up redoing his work, well quite a bit of it atleast, it's not as balanced as I'd like to have it...
Basically since your looking into getting a fair amount of engine work done, take your time, ask a lot of questions from a lot of sources, and see what matches up, see what's hype. This isn't the kind of thing you just want to jump into with out knowing the inherent risks, dangers, and how it will effect the stability/reliability of your machine. It may be quick, but if you have to rebuild the top end every 15 hours, what fun is that?
Not that you would have to rebuild it like I said. I was just using that as an example. Jut make sure you ask a lot of questions. Call your local shop, see if they would charge more to work on your machine if you had all that work done (they shouldn't, but it wouldn't be a nice surprise if they tacked on an additional $5-$10 per hour for labor intensive machines). There is A Lot to find out about those kits. Hopefully Death will chime in on his take on the bigger bore kits, when he had his warrior, he basically had All you could do to a warrior done (it helps when you work in a shop
)
~Bill
