scpaul
1/2 ton status
I'm probably in over my head, but
It seems that there are too many variables, especially with a modified engine, for any carburetor manufacturer to make a blanket statement like 1 or 2 numbers for every 1 or 2 K feet of elevation. Maybe with a computer/injection setup, but with just a carburetor it seems that there's too many variables ie: air pressure, type of fuel and octane, humidity, vehicle weight, gear ratio/ tire higth, and we haven't even mentioned compression ratio, cam, ports, headers, and all the other tricks to make the air/fuel mixture flow as smooth as possible. It may be a reasonable starting point but with all the variables and extremes, I don't see how you could even say that and expect a high % of being right. Before NASCAR went to fuel Injection, look at all of the changes/adjustments they had to make just for altitudes and weather conditions. Just an old pharts thoughts, Paul
It seems that there are too many variables, especially with a modified engine, for any carburetor manufacturer to make a blanket statement like 1 or 2 numbers for every 1 or 2 K feet of elevation. Maybe with a computer/injection setup, but with just a carburetor it seems that there's too many variables ie: air pressure, type of fuel and octane, humidity, vehicle weight, gear ratio/ tire higth, and we haven't even mentioned compression ratio, cam, ports, headers, and all the other tricks to make the air/fuel mixture flow as smooth as possible. It may be a reasonable starting point but with all the variables and extremes, I don't see how you could even say that and expect a high % of being right. Before NASCAR went to fuel Injection, look at all of the changes/adjustments they had to make just for altitudes and weather conditions. Just an old pharts thoughts, Paul

