I'm dialing my cam in right now. Here's the specs, according to the cam card:
Solid Roller
285/285 Adv
244/244 @ .050"
106LDA
104ICL

Events @ .050" (IO/IC, EO/EC)
16/41
47/9

Ok, when I calculate the advance on this cam according to the given timing events, I get 3 degrees advanced, even though the 106LDA & 104ICL indicates a 2* advance. Which is correct?

I installed the cam, and here's the timing events that I got:
14.5/44 (IO/IC)
47/10 (EO/EC)

This calculates out to be about 2* advanced. Ideally, I want 1* or 0* advanced (nearing 8.5:1 DCR w/ alum. heads)

Getting to the point...
Should I match my intake closing event to the 41* per the cam card, then retard it 2* to get a 0* net advance? Doing so would require me to advance the cam 3* from the position it is in right now.

OR, should I just retard it 2* from where it is installed right now and hope it's 0* advanced?

Events @ .050" (IO/IC, EO/EC)
16/41
47/9

This would define a cam of 237 degrees intake, 236 exhaust installed 3.3 degrees advanced. IILC is 102.5, ELC is 109, LSA is 105.8

I installed the cam, and here's the timing events that I got:
14.5/44 (IO/IC)
47/10 (EO/EC)

This would describe a cam of 238.5 degrees intake, 237 degrees exhaust installed 1.9 degrees advanced. ILC is 104.8, ELC is 108.5, LSA is 106.6

The correct measurements are what you measure, the cam card may not agree with the cam.

Yes, that's what I got too.

So I assume I should just advance the cam 2* to get what I want (zero advance)?

Any why is it that just about every .050* duration does not match the duration calculated by the cam timing events?

So I assume I should just advance the cam 2* to get what I want (zero advance)?

Advancing the cam 2 degres more would put it at 3.9 degrees advanced.

Any why is it that just about every .050* duration does not match the duration calculated by the cam timing events?

The correlation between the spec sheet and the actual measurements reflects on the accuracy of the cam manufacturing process. No amount of wishful thinking will bring the two any closer together.

Sorry, I ment to say "retard".

I'll get a 2* bushing and put it as close to zero as I can.

Your timing chain will probably stretch 1-2* within a few hundred miles...which would put your cam timing right where you want it.