Cam Shaft Degree

[blykins]

You're confusing cam timing with ignition timing.

Cam timing is the relation of the valve events to the crankshaft position. If he set it at 2 degrees advanced, then the LSA was 107 and he put the ICL at 105.

Ignition timing is where the plugs fire in relation to the piston position. If you set the initial timing at 12 ° BTDC, then the plugs are going to fire at 12 degrees before TDC until the distributor advances the timing. If your distributor has 20 degrees of mechanical advance (for example), then your total timing is 32 degrees.

[patrickt]

Originally Posted by blykins

Cam timing is the relation of the valve events to the crankshaft position. If he set it at 2 degrees advanced, then the LSA was 107 and he put the ICL at 105.

That's not gonna make a lick of sense to him. Snakebit, here's a graph of my cam. Seeing a cam's specs displayed this way will help you visualize what an "intake center line" (also called "intake center angle" or ICA) is and what "lobe separation angle" (also called "lobe center angle" or LCA) means along with some of the other stuff that's important to a cam, like duration, lift, overlap, and what not. You can see that my cam is installed with six degrees of advance (LCA-ICA). If you tell me the maker and model number of your cam I'll do the same with yours and graph it as installed with two degrees of advance.