Many, many years ago, I got 28 mpg on mine while going on a day long cruise around the Olympic Peninsula in Washington state. Now with a more built up engine, I get anywhere from 15 to 21 mpg with a 4 speed and 3.55 gears. Mileage depends on wind direction, air temperature, speed, and my ability to quit mashing the accelerator pedal to the floor.How are you getting over 20 MPG? I did some calculating yesterday on mine and I'm getting about 11-12 with a mild build and 3.0 gears.
What happened? Already sounds like a nightmare before you tell me.
And @guitarman584 , I also have a mildly built 289 with C4 and 2.80 rear, and I have a 4100 4v that runs 22+ until I start liking the sound of the back barrels opening. I think it would actually get more mpg if I cruised a long distance at only 1800 rpm or so. I considered an overdrive trans if and when I ever blow up my C4, but it was built really well last time.I had a 65 Ford Custom with a 289 w/ C4 transmission, 2V carb. It would get 22+ MPG on the highway consistently.
Dan, weren't you grunting when you said that?Intersting subject.
In the early 70's we built a 289, used stock heads but machine it to accept bigger valves. Compression 11 to 1, balanced, 2 4's.
It would turn 10 thousand, ran it for a year in a 65 mustang. NO problems.
Maybe luck was with us, but these little motors will take lots of abuse, and beat a lot of Chevy's---Or Kick Chevy's A--.
I liked that!
Dear god. Good info man.So some of you may have read this post. Quote: Originally Posted by 2nd 66 View Post Autox on Sunday and drive to work on Monday as much as possible. Actually just heard about one this Sunday I wasn't aware of Sooooo,,, I may have to change those plans somewhat Made it to said autox about 6...www.vintage-mustang.com
Same here Chock, we spoke previously about my gearbox. Car is at paint at the moment, as noted in the original post.Dan, weren't you grunting when you said that?
BTW, when are you shutting down for the winter? I have a '69 gear box i need to send to you...
Dan, weren't you grunting when you said that?
BTW, when are you shutting down for the winter? I have a '69 gear box i need to send
We are leaving the 18th of December, return March 1st.
So it might good idea to get in PDQ.
I'd like to get them done for Folks before the 18th.
THANKS FOR ASKING GUYS!
Never had problems with high pressure high volume oil pumps......Senior Mariied Woman Stories = Old Wives Tales LSG