Yes. There might be some slight changes in performance because the carbs of the K8 are set very lean for lowered emissions with a late-opening cam. If it ends up 'feeling' cold-blooded then there are 2 simple things you can do first to try to smooth that out:
1. Use higher-octane fuel (normally you should be running Regular gas now).
2. Turn the idle-mix screws outward 1/8 to 1/4 turn from normal setting (the K8 normally is 1.5 turns out).
If it still stumbles off idle after that (when warmed up) and you already have the idle-mix screws turned outward 1.75 turns, then you'll either have to live with that, or try to find some slightly richer pilot jets. The OEM version in the K8 carbs came 2 ways: if it was a California bike the idle jet will probably be #35 size (very lean) or if it is a Midwest or East Coast bike it will probably be #38 (technically a #37.5) size. Changing either one up to a #40 size jet will return the idle-mix airscrews to their working range again, and the final setting will come in around 1.5 to 2.0 turns, usually.
The K8 is/was the leanest-mix bike of the whole 750 SOHC4 series bikes, and it has a late-opening intake cam that opens the intake valves at 0 degrees TDC, and also opens the exhaust valve early at 175 degrees (i.e. 5 degrees before BDC) for better scavenging and lower emissions.
If the new cam comes from the 750F0/1/2/3 engines it will drop right in, but if it comes from any of the K0-K6 engines, then the above rules apply. These cams will also provide a bit more low-end torque, helpful for pulling away from stopsigns, etc.
