I need some help with my new Rollmaster timing set. I installed the cam straight up and found that is is 3 degrees retarded from where I want to be. I could make the mods with the cam gear drilling the bolt holes a bit larger and installing an offset bushing, but with the crank gear having 9 keyways for different installations I would like to give that a try. Here is the problem. The crank gear has two marks on it. One "O" directly above the keyway I used for the straignt up install, and one "O" in the throat of the gears three teeth to the left. There are a total of 9 keyways and that is the only markings on the gear. To top it off the instructions are vague to say the least. I think I could use the second keyway to the left of the keyway marked with the "O" and it will be 4 degrees crankshaft advance or 2 degrees cam advance. I also think the dot on the cam gear should be pointing toward the throat of the gear teeth directly above the crank keyway I choose to use, but I don't know for sure. They didn't teach this chit at Purdue Engineering School Can anyone provide assistance before I have this thing on and off 15 times?