Hey Jack,
On the CPU cooling; thermal grease to a copper spreader/heatsink is the way to go.
The Sony with the Magnesium case is a great idea for moving heat . . .the Titanium ones are just a little better than plastic for moving heat. (which isn't so good)
The low voltage chips have much lower dissipated heat, but those always lag in available processor speeds.
On the filter collar; K&N did you say?

Consider where the heat, taken off the filter, is going . . .right back past the (or into) the engine.
For reasonable people, any additional cooling is going to come from moving more air past the engine, or additional cooling on the oil circuit; outside the engine compartment.
Putting in a larger oil cooler. . . up front RS style? Okay, so we know you don’t want to do “that big box” on those sweet lines. Your oil tank, is it the copper clad aluminum? If not, that switch would help.
Well I’m sure you can come up with a creative sol’n. Just keep in mind what moves heat:
1) temperature difference; the bigger, the faster it moves. (2nd law stuff) . . .Hot air doesn’t do a whole lot of cooling.
2) the larger hot surface area, the better the air can take the heat away. (cooling fins)
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'81 Platinum Metalic SC Coupe
[This message has been edited by island911 (edited 06-04-2001).]