Cylinder head shaving advice??

Consult with your local machine shop, they have a manual that give the height spec for every engine. Height spec i.e. maximum milling allowed spec, this can be measured from a called out srface to the head gasket surface and also you might need to c.c. the combustion chambers. If the heads are still in the usable range it should be a simple math problem.

The CR of my car mathematically confirmed 9.27:1. Now i found out from amazing customer service at SSMS that the max you can mill is about .030" before interfering with coolant channels and clearance issues.. and it will give me about 9.8:1 CR. close enough for me... now i need to find out how much i need to Advance or Retard timing and what the best WOT fuel air ratio is

Your cam will make a lot of those choices for you... If you're keeping the stock cam, it might just be a matter of raising octane.

These cars run VERY high WOT ARF stock. Like 11-11.5:1. You should shoot for 12.5 to 13:1. Leaner makes more power, richer makes it safer, as I'm sure you know. However, lean mixtures also burn slower, thus requring more advance to get the most out of(also generating more heat, risking detonation). Rich mixtures, of course, burn faster. A lot of cars end up with more fuel and timing than they really need...

Dstark01 said:

remember this about engines they are AIR PUMPS, the more air in and out, the more power made. Cams, Pistons, Stroke all play a role and moving the through the intake is a crucial part of the equation. Of course it's just takes $$$$$ and there is an endless supply of that, right.LOL

Click to expand...

Turbo's and superchargers are "air pumps"... Engines have timing and other associated quirks.

Compression ratio has a very direct impact on power level. Higher compression, to a point, increases thermal efficiency, meaning that less fuel is used to achieve the same power level.

I saw many of the world's most advanced engines, including a 2004 Ferrari F1 3.0L V10, while I was at Ferrari World last year. (I may post photos later...) They use insanely huge ports to feed that 19,000 RPM 3.0L 900 HP beast. They also use 17:1 compression. Both(ports and compression) are equally important. Regardless, one is much easier to effectively modify...