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Jan 22, 2006 | 11:19 AM

Madathlon

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Joined: Dec 2004

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From: Shasta Lake, Ca.

gas Milage

What have you done to help your old girl get better milage?

Jan 22, 2006 | 12:21 PM

51ford fan

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Joined: Apr 2004

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From: Seattle WA.

Installed an S10 5-speed transmission, and a 9" 3.23 rearend behind the original Flathead 6. To replace the original non-syncro 4 speed and (optional that year)4.27 rearend.

Rod 51F1

Jan 22, 2006 | 01:47 PM

Jet Jock

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Joined: Mar 2003

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From: Limestone, TN

302 'girly motor' with 320 horse and a AOD

Jan 22, 2006 | 05:48 PM

Randy Jack

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Joined: Jun 2004

Posts: 4,190

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From: Riverside, So Cal

I only get good mileage with my 351C when I don't drive it.

Jan 22, 2006 | 05:52 PM

imlowr2

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Joined: Apr 2004

Posts: 3,005

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From: Santa Clarita

It depends if you talking about my truck or wife? The truck, a set of headers and edelbrock carb. The wife- vitamins.

Jan 22, 2006 | 05:53 PM

Madathlon

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From: Shasta Lake, Ca.

With my 223 ( Rebuilt Block ) Been bored 30 over and deck 25 gapless ring stock intake log with a 5210 2bbl carb, T98 4speed and 4.11 rearend in getting about 19 intown and 15 highway..

Jan 22, 2006 | 06:04 PM

cbfomoco

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Joined: Aug 2005

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Quote:

Originally Posted by Madathlon

With my 223 ( Rebuilt Block ) Been bored 30 over and deck 25 gapless ring stock intake log with a 5210 2bbl carb, T98 4speed and 4.11 rearend in getting about 19 intown and 15 highway..

what size tires are you running? any idea on rpm on the highway?

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Jan 22, 2006 | 06:09 PM

B/B ford

Clean & Classy

Joined: Dec 2004

Posts: 1,656

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From: Riverside CA..

I put in a 21 gallon tank, and left out the spare.

Jan 22, 2006 | 06:43 PM

#10

klatt_89

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Joined: Jan 2005

Posts: 908

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From: Lindsborg, KS

I have a 1957 F-250 with a tweaked 302 and a M5OD tranny, and have LT265/75R16 on 16 inch rims. I haven't got it completely streetable yet, but i'll let ya know how good/bad gas mileage it has.

Jan 23, 2006 | 07:53 AM

#11

AXracer

Hotshot

Joined: Oct 2004

Posts: 15,882

Likes: 88

From: Durham NC

T56 6 speed, 2 (count em, two) OD's! 6th gear 0.5:1 engine loafs along @ 60 MPH.

Jan 23, 2006 | 10:07 AM

#12

krautwolf

Mountain Pass

Joined: Oct 2004

Posts: 205

Likes: 0

From: Southern California

Girly 302. AOD. 3.25 differential. Throttle body fuel injection. K & N air filter.

Jan 23, 2006 | 10:51 AM

#13

tacson

Cargo Master

Joined: Apr 2003

Posts: 2,578

Likes: 208

From: Murfreesboro, Tennessee

Krautwolf,

Hey curious what mpg has the K&N Filter made? Thanks

Jan 23, 2006 | 02:34 PM

#14

krautwolf

Mountain Pass

Joined: Oct 2004

Posts: 205

Likes: 0

From: Southern California

When I had a 292 y-block it added up to .75 mpg depending on how many mountain passes I went over when I took my data. The K & M also improved performance on hills incredibly, and nearly eliminated hesitation when passing/accelerating. It was a worthwhile purchase and I've bought K & Ms for all my vehicles since. With the girly 302/AOD modification and milder rear end I'm not winning any races but I'm getting 19 mpg on the freeway. Not bad for a white whale.