340 Gets Terrible Gas Mileage
My 340 gets about 8-9 miles / gal. so I feel your pain! I also have a street/strip cam, Headers, etc. 727 transmisision. Rear end has 323 gears. I have a Holley Sniper EFI sytem that is pretty well tuned but might be a tad rich.
Part of the reason you are not getting any better gas mileage is the 3 speed transmission. My car turns about 3200 rpm at highway speeds (70 mph). I'm going to swap out to a 5 speed Tremec which will allow crusing at a lower rpm as well as more fun shifting gears.
Nice looking car by the way! I love the look of 18" wheels on these cars. Here's mine.
My 340 gets about 8-9 miles / gal. so I feel your pain! I also have a street/strip cam, Headers, etc. 727 transmisision. Rear end has 323 gears. I have a Holley Sniper EFI sytem that is pretty well tuned but might be a tad rich.
Part of the reason you are not getting any better gas mileage is the 3 speed transmission. My car turns about 3200 rpm at highway speeds (70 mph). I'm going to swap out to a 5 speed Tremec which will allow crusing at a lower rpm as well as more fun shifting gears.
Nice looking car by the way! I love the look of 18" wheels on these cars. Here's mine.
