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466cid + TKO600 + 25.7 tire= ??.? MPG
#1
filled up another 13.8 gallons and drove 146 miles from the last fill up. and i come up with 10.57MPG. not too bad for a humble foot (sometimes heavy) in a heavy car and sometimes going into OD at too low of a speed. there are times i'm in OD @ 50mph and my rpms is only 1500rpms and my powerband starts at 1800. i'm not sure if thats hurting MPG or not but i would assume it is since the motor isn't running efficiently but if i'm not in OD my rpms is about 2400rpms going 50 in 4th gear.

so here we have it, 10.57MPG this time. i'm going to see what i get again next time.
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#2
DOESNT SOUND TO BAD TO ME. I DOUBT THAT AN ORIGINAL SETUP WITH A 460 GOT ANY BETTER. AND JUST GUESSING I DONT THINK O.D. AT 1500 WOULD HURT UNLESS YOUR LUGGING IT UPHILL. I HOPED WHEN I GET MINE DONE I COULD GET TO ABOUT 8MPG. SO YOUR MAKING ME HAPPY.
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#3
PAPPY HAROLD;20535 Wrote:DOESNT SOUND TO BAD TO ME. I DOUBT THAT AN ORIGINAL SETUP WITH A 460 GOT ANY BETTER. AND JUST GUESSING I DONT THINK O.D. AT 1500 WOULD HURT UNLESS YOUR LUGGING IT UPHILL. I HOPED WHEN I GET MINE DONE I COULD GET TO ABOUT 8MPG. SO YOUR MAKING ME HAPPY.

Thanks for the report Olie... Have yall heard anyone talking about AODs on the motor, or 351s? I heard someone say they got close to 20 on a fuel injected Cleveland and AOD... I have my "doubts". Huh
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#4
71_badmach;20587 Wrote:
PAPPY HAROLD;20535 Wrote:DOESNT SOUND TO BAD TO ME. I DOUBT THAT AN ORIGINAL SETUP WITH A 460 GOT ANY BETTER. AND JUST GUESSING I DONT THINK O.D. AT 1500 WOULD HURT UNLESS YOUR LUGGING IT UPHILL. I HOPED WHEN I GET MINE DONE I COULD GET TO ABOUT 8MPG. SO YOUR MAKING ME HAPPY.

Thanks for the report Olie... Have yall heard anyone talking about AODs on the motor, or 351s? I heard someone say they got close to 20 on a fuel injected Cleveland and AOD... I have my "doubts". Huh

i know there are AOD's that are available on the 460 motor (oem bell cut off and a new bell bolted on with a special converter).

people with finely tuned 460 in our car's have gotten 14mpg before. mine isn't quite as finely tuned yet just playing with strictly performance right now.

i still need to recurve my dizzy still! i'm sure if i were going to go on a 70mph all freeway drive i could yield at least 13-14mph cruising at 2200rpms.

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