Hey all, I recently moved to a much higher altitude and I was wondering what I need to do to ajust my carb to compensate. Right now the carb is pretty far off, the plugs get carbon fouled pretty fast. My engine is a 1970 I-6 200. Thanks for all responses.
If it needs any adjustment at all, you'd need to lean the mixture a bit. The thinner air here makes the engine want to run rich. Your Chiltons should tell which direction to turn the idle mixture screw to lean it out. You don't have to adjust the timing BUT advancing it 4 degrees is beneficial for good throttle response and off-the-line power. I advanced mine 8 degrees on my 302...
Basicly... losen the distributor hold down bolt(1/2 inch) carefully move the dist. clockwise for advancing and counter clockwise for retarding. use a timming light to guide you along. You might find it benifitial to get a cliltons book for detailed info on your car...well worth the money. Mark
I don't know if this help but I am at 5000 ft. here in Albuquerque, NM and the stock ignition setting for my car according to my emission control stick (which says the car is tuned for high altitude ) is 12 Degrees before top dead center. Also for my carb the factory setting is I believe 3.5 turns. Im not too sure on the carb its been a while sence I set it but with that you can tell if its too rich or too lean by the way it runs.
