BUSY BOLTERS Are you one?  The Shop Area
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Jul 21st, 2025 | | | | Joined: Aug 2007 Posts: 1,082 Shop Shark | | Shop Shark Joined: Aug 2007 Posts: 1,082 | well guys, i checked my MPG tonight, and it seems i am now getting 13.69 MPG, instead of the 6 MPG i was getting with the origianl set up when i first bought the truck.
i rebuilt the edelbrock #1405 carb to be more like the #1406 carb, as per their tech person over the phone. he had me change the .100 jets to .098 jets, and change the metering rods. i did that, installed a fuel pressure regulator and set it at 6 psi, set my timing, and didnt really put my foot in it the last 3 weeks of cruising.
and i went for a little cruise on the turnpike to kind of claibrate my odometer. when traveling 1 mile between mile markers, the odometer read only .9 miles, so it was one tenth off.
tonight my odometer read 129.5 miles, so i multiplied that by .1 tenth, which gave me 142.45 actual miles traveled, and i put in 10.404 gallons, for a grand total of 13.691 MPG.
a lot better than the 6 MPG i was getting.
gonne leave it alone for now, and try to keep my foot out of it and hope the mileage stays in that range.
leonard | | | | | Joined: Dec 2006 Posts: 1,464 Shop Shark | | Shop Shark Joined: Dec 2006 Posts: 1,464 | Alright Leonard: That's much better!! | | | | | Joined: Mar 2008 Posts: 61 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2008 Posts: 61 | Great going Leonard. Lots better than the 9.2 mpg I'm getting with ole Yeller and its 216.
Last edited by YEL 53 CHEVY PU; 05/18/2008 4:54 AM.
Bill S.
Tempe, AZ
| | | | | Joined: Mar 2006 Posts: 1,703 Shop Shark | | Shop Shark Joined: Mar 2006 Posts: 1,703 | cool Leonard!, I bet ya pleased as punch with over doublin the mileage. | | | | | Joined: Aug 2007 Posts: 1,082 Shop Shark | | Shop Shark Joined: Aug 2007 Posts: 1,082 | thanks guys.
yes, much happier now......
now if i can only squeeze about 20 MPG .LOL.
better not push my luck..
leonard | | | | | Joined: Dec 2003 Posts: 1,554 Shop Shark | | Shop Shark Joined: Dec 2003 Posts: 1,554 | You can play around all you want to with your carb.and engine.But until you get the right gearing in the rear you are not coming close to the mileage that is possible. | | | | | Joined: Aug 2007 Posts: 1,082 Shop Shark | | Shop Shark Joined: Aug 2007 Posts: 1,082 | i hear you dale..
just filed up my daily driver, 2003 s-10 with 4.3 v-6.
i am only getting 13.5 MPG in it, around town. last time i checked, on the highway it was getting 19.
so my v-8 57 chevy is now getting better gas mileage than my factory s-10. crazy.
leonard | | | | | Joined: Jan 2004 Posts: 70 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2004 Posts: 70 | Leonard,
can you tell much difference in power with the new jetting? | | | | | Joined: Aug 2007 Posts: 1,082 Shop Shark | | Shop Shark Joined: Aug 2007 Posts: 1,082 | shoe, i did the jet change and metering rod change, and retarded the timing and installed a fuel pressure regulator, all at once.
and yes, i did notice a slight decrease in performance.
but mine aint no race truck, and it will still burn the tires on a dead punch, so i am more than happy with the way it drives now.
leonard | | |
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