Well I'm not even going to pretend I'm good with tuning, but I've had an interest in megasquirt for a long time, but for other projects. This is something I would like to learn on and I don't expect it to be done overnight.

When it comes to using the stock PCM, what are options as far as tuning go? Cost? User Freindly?

The reason I thought megasquirt would be the best, was the fact that it's so versatile. I could change manifolds, delete emissions, port, or whatever and still tune it to stoic, or a little leaner (looking for MPG). And the initial cost of megasquirt seems fairly reasonable. I think I would be able to handle the wiring, and just take it one connection at a time, asking questions as I go.