Mustang Boy

im getting like 8-10mpg with my 200ci I6 3.20 gears 5.0 t-5 high performance cam oversized valves roller rockers and i cant keep my foot off the floor but the major thing keeping the mpg so low is i still have my 1brl but stock i was getting like 25-30 highway i should get like 20mpg when i put my holley 2brl on it hopefully this afternoon

69mach1377

mid teens

4reboy

thanks guys. Doesn't seem to be tooo much of a gas guzzler, depending on what you do to the engine. How my mpg do you think a 351 windsor will allow?

Colorado_Mustang

Based on an article written by an auto review magazine in the late 60's, the 351w in a '67 Mustang averaged 17 mpg or so. The 351w in a '67 Cougar averaged 21 mpg or so (it has cruise control). This was in a pony car shootout that also included cars such as the Camaro, Firebird, Barracuda, etc. All had similar displacement engines and all were right around 17, except for the Cougar, for their test loop. They were also all automatics.

I don't recall the name of the magazine...I was just bored in a Library one day.[sm=sleeping.gif]

RES

I've got a 69 coupe with a 302 and I'd be tickled pink to ever see 15.

Riven02

10-15

mustang289

i've done it twice and with a 289 2v with edelbrock intake and carb and full exhuast with a LSD dff and 3.00 gears it said i was gettin 10-11 but i think my odometer is severly screwed up

Epic2112

Ok, I calculated what I'm getting, and it coms out to about 15 mpg highway. Is there something wrong here? As far as I know, it's a stock 289 2brl.

Clu7ch

in my 200 cube/C4 i was getting about 15ish depending on how i drove. plus i let my car warm up a lot and the 1v was shot!

EDITED cause i'm dumb!