AW: AW: Intake manifold construction, intercoolers

[Shawn Fogg]

Bruce,

"As far as I know actually, the iris style is best, but rare and expensive."

Have you seen BMWs Valvetronic technology? 

The system varies intake valve lift to control the airflow into the engine so it doesn't need any throttle body.

http://www.autospeed.com/A_1083/page1.html

Shawn

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