Vacuum or not?

["Janssen, Lee K" <lee.k.janssen@lmco.com>]

>With all the talk about whether or not to keep the vacuum advance units
>on distributors, and the lack of understanding .....

One of the reasons for the confusion may be the fact that the late model
TR-6s were equipped with a vacuum RETARD.
Vacuum advance = power
Vacuum retard = middle 70's attempt at pollution control.

Lee Janssen
74 TR-6 with early model distributor and no stinking EGR valve!