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geezer#99 · 11-08-2010, 11:36 AM

What's your timing set at? Increase it to 12 degrees initial and make sure your vacuum advance is working. Check the air pressure on your tires. Low pressure takes more power to move down the road.
Your cold air intake is good for power when it's hot out but you need warm air into your carb. Cold air and fuel don't mix well when it's cold out. A factory air cleaner with heat supplied from the exhaust manifold works well.
You're driving a heavy truck. Pretend there's an egg under the gas pedal and you don't want to break it. LOL!!!
Plan your trips. Find the route with the least stops and starts.

11-08-2010, 11:36 AM	#2
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,512	Re: Improve mileage 350 with Quadrajet What's your timing set at? Increase it to 12 degrees initial and make sure your vacuum advance is working. Check the air pressure on your tires. Low pressure takes more power to move down the road. Your cold air intake is good for power when it's hot out but you need warm air into your carb. Cold air and fuel don't mix well when it's cold out. A factory air cleaner with heat supplied from the exhaust manifold works well. You're driving a heavy truck. Pretend there's an egg under the gas pedal and you don't want to break it. LOL!!! Plan your trips. Find the route with the least stops and starts.