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I would get pretty much everything reccomended so far (money being no object), oversized valves, 3 or 5 angle valve job, check for flatness, cam gears, turbo grind cams, springs, lifters, rocker arms (defenitely rocker arms), ect...
But, I would not bother with the retainers. From the information I have gotten, our retainers don't need to be replaced when it comes to the rpms they can rev to, they are fine up to something like 9000 rpms or more (don't remember exactly). Yea, once you're in there you could have the "why not?" attitude but it really isn't necessary, better t use the money for other things.
I understand perfectly the idea of less valvetrain weight, and less weight is always a good thing, don't get me wrong! But, for a turbo application, you are making horsepower with boost, not high RPMs. If you were going for an all motor high revving car it would be one thing, but I don't think the weight in the valvetrain of the stock retainers is going to be a big deal in a boosted application.
For porting, I would get it extrude honed or lightly ported. I would NOT go crazy on a port job. I know with a turbo you can get away with not being as careful about such things as compared to being naturally aspirated, but I would error on the side of taking out less material rather than more. You can't add more metal to the head, but you could always take more away.
If you ceramic coat anything, do the pistons and the exhaust ports, but not the whole cumbustion chamber. I don't remember the exact reason why, probably because that is all that is necessary the rest doesn't help, but this is what I was told from a reliable source. "Tutto fa brodo."
Todd Scungio
98 RS
15.173 @ 90.70 MPH
And also a 2011 Ralliart
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