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First, you need to find an exhaust gas analyzer and find out what the mixture is when you're running down the road. If you're running rich (too much hydrocarbon in the exhaust) try putting a smaller set of jets in. Be careful, it's easy to go too far and if you do that you'll burn valves and possibly a piston.
Repeat the process until you get a good mixture, then adjust the idle mix.
What else can I help you with?
What is better injector engine or carburetor?
in my opinion fuel injection is better because it increases your horsepower and gas mileage in most cases
Can you replace the throttle body fuel injectors with a carburetor in a 2.8 Chevy v6?
Yes, it can be done, but why in the world would you want to replace a system that is more efficient, will yield better mileage, quicker starts, better performance, with a carburetor? Fuel Injection is superior to a carburetor in every way.
How do you get better gas mileage on edelbrock 600 on a Chevy 350?
If there's no noticeable stumble or hesitation, it's usually not the carb. A good free-flowing exhaust system helps, as well as a cam designed to maximize economy. Also, if you drive like there is an egg under your right foot, you'll get better mileage.
How can I optimize my vehicle's performance to achieve better gas mileage with the use of a chip?
You can optimize your vehicle's performance and achieve better gas mileage by using a performance chip. These chips can adjust the engine's settings to improve fuel efficiency and overall performance.
Why do you have to pump accelerator to start 396 and it has new carburetor?
If the engine runs well after it's warmed up, you just need to adjust the choke to make the engine start and run better when it's cold.
What happens when you put super in a mid grade fuel car?
New cars can adjust and get better gas mileage, older car 2002/older, you are just wasting money.
How do you get better gas mileage for a tsx?
for any car to get better gas mileage get a better flowing intake and/or exhaust or get it tuned
How do you get better mileage with my duramax diesel?
Probably the best way to get better fuel mileage would be to get a tuner for it.
What gets better gas mileage 446.1 or 430 gear ratio?
Lower ratio gets better mileage; 430 is better.
What carburetor can replace the 1984 GMC 350 Sierra 4 barrell quardjet please and thanks?
You Can still buy that Carb new or used, unless you may want to go with a new or better one and i would say a Holley 600Cfm or 650Cfm gas mileage might go down a little.. and you don't need to Replace your intake they sell Adapter plates for the conversion And Also you can get an Adapter plate and Use Edelbrock 600-650Cfm Carb theres a link for it below but you can but it from your local autoparts store like AutoZone or Advance auto parts or a speed shop sells them but i wouldn't go there they always mark up more then anyone else.. Edelbrock 600CFM http://www.jegs.com/i/Edelbrock/350/1400/10002/-1 Or if u wanna spend the money you can go high tech and buy Holleys Aftermarket TPI injection system Stock GM 2 barrel or holley TBI 4 barrel and probaly increase your gas mileage parts store should be able to order that also...
When I try to speed up1984 ford pleasure craft engine sputters runs rough then runs better . Do I have a gas or electrical problem?
You may need to adjust the carburetor. It sounds like it's running too rich.
Do you get better gas mileage with ac on or windows open?
This was answered on an episode of Mythbusters, you get better gas mileage with the AC on.
