[Mgs] MGB Cruising Speed.

[Paul Hunt]

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.