[mikedsilva]

My thougths on the difference between high and low lift cams, is depending on the cam, it may 'bounce' back on you. To counter this I install rockers in both intake and exhaust. Never had an issue doing this, and I usually rotate till the cam lift is on target, then loosen the nut and rotate crank back to zero.

I just timed a set of higher lift cams on a 3.2 engine a couple days ago.

For TDC, I always use a digital degree wheel like the stomski tool: why? Because I have personally witnessed pulleys that are not always accurate to TDC. Firstly, the pulley can rotate a degree or two with the slop in the locating dowel between the pulley and crankshaft. But in this actual engine, the pulley is off by a couple degrees too.

I swapped the clients pulley with one from my own stock, and my pulley was almost perfect inline with the case centreline. So this just reinforced my thinking to always use the digital tool.

I've been told that I over think this and waste time being overly accurate, but I cannot see how it hurts.

As for the sprocket locating dowel on the end of the camshaft, yes, there is a LOT of slop in that too which allows you to dial in the left and right banks. I typically aim to be within 0.02mm of left and right.