Hey Lynn, what's the combustion chamber look like in those heads? Pretty open? 40 degrees suprised me a little bit. If the chamber is open, though, it will really widen the tuning window a lot.
Curt - I wish we had GT55s on ours. Controlling power with boost is probably a bunch easier than how I have to do it. I can only get away with it because of the clutch. If it was an auto, it would be game over. CID doesn't mean as much with a clutch in terms of getting the turbos spun up, but it's everything with a converter. Stroke is king with a converter, so long as the tire can tolerate it!
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