The comment about the carbs and getting the *ideal* curve (as opposed to the
design curve) on a rolling road is perfectly correct, but you can diagnose a
faulty curve i.e. too aggressive due to tired advance springs with nothing
more than a timing light, preferable an adjustable one where you can turn a
dial until the flashes are on TDC then read off the real advance from the
dial. With a standard engine and carbs in good condition I'd expect mixture
to be pretty much as it should be, it is timing which is more likely to go
off.
PaulH.
----- Original Message -----
> The problem is that without tuning the car on a dyno or rolling road, it
> is unlikely that the tuning is going to be accurate at that speed.
...
> Getting technical, some quick checks with a timing light showed that
> both original distributors were giving far too much advance.
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