Nice input Curt. Let me add one point. I have a '74S with the same engine and a M&K 2-1 as well. Last year when I rebuilt it, I had my cams reground to the SC profile. BIG difference. It has much broader range of power and pulls to redline instead of dropping off around 5K rpm's. Just really an incredible difference. It feels like an increase in HP but I can't say for sure.
So if you're thinking of another change to make to the engine, I recommend the SC grind.
Lastly, since I just did this a couple of weeks ago, check the CIS system fuel pressure. I was having some cold start issues and shuffling around 2-3K. I bought the check kit from our host, made a couple of adjustments and again, BIG difference.
Glad to hear positive inputs on CIS as well
