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Old 09-14-2006, 03:38 PM
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ken47 ken47 is offline
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Poor gas mileage problem

I am running a 267 SBC in my new T bucket. It's a stock engine from an 81 Camaro. I'm using a new Holley 390 CFM carb (down jetted 2 sizes for 3000 ft altitude here) on a weiand 8007 dual plane manifod with a square/spreadbore carb adapter, 180 deg F thermostat, a TH-350 transmission with 2.79 rear end and 295R14 tires. I am using a stock points type distibutor (don't know the year) with a points elimination kit in it. I am using a flame thrower coil (40K volts with no balast resistance). My problem is that the gas mileage is really poor. It seems worse at low speed city driving. I thought the gas mileage would be very good with ths set up. Any suggestions as to where I should look to improve things.
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