[Healeys] Elevation effects on SU carbs - suggestion

[Steve B. Gerow]

Bob Spidell wrote:
"Make changes you can remember; e.g. "raised jets 4 flats to lean" and "opened throttles one-half turn." "

Lin,
The ace tuners at APT...
http://www.aptfast.com/index.htm
...suggest this method:

Remove the domes and, using a dial caliper, measure the jet depression in both carbs between the bridge and how far down the jet sits. Equalize the amount; for instance if it's .055" in one and .045" in the other, equalize at .050". Make a note of this amount. The difference between the two may turn out to be a _lot_ more than .010".

In Colorado if you lean it slightly by raising the jets to say. 045" then you can reset them to exactly .050" when you get back to VA.

I find this method very easy to do using my $14 dial caliper from Harbor Freight. God bless globalization!
-- 
Steve Gerow
Pasadena, CA
BN6