Nice!
The cam: was that for added power, or to shift the torque curve down to make highway cruising more efficient?
Oldsmobile offered (or at least tested) such a cam in the 60's:
Quote:
...the camshaft is the key. Intake duration is reduced from 286 to 250', and from 286 to 264' on exhaust. Overlap is reduced from 58 to 36', and lift is reduced from 0.472 in. on the 4-4-2 camshaft to 0.435 on the special ... camshaft.
The vital point of maximum torque is dropped from 3600 to 2600 rpm. - source
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Unfortunately, the source web page is now offline. But it referenced a magazine article about the engine.
Lower lift & duration is the design of the
special economy cam in the Geo Metro XFi as well.