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GURU Notes on GM CPI
Posted to Technical Theory Forum on 10/28/2001 5 Replies

All,

After watching the forums it seems that many could use some theory help on the GM CPI Vortec units.

A couple of thoughts on this system:

GM'S CENTRAL PORT INJECTION (CPI) UNIT

The CPI unit is very similar to the old “dribble” system of the late 19... Login to read more.

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