01-05-2006, 05:17 PM

MRGTO2U

Member

Join Date: Mar 2005

Location: Pembroke Pines, Florida

Posts: 48

428 gas mileage

Hi everybody!
My 68 GTO has a 428, Carter AFB, Headers, 6X Heads, Ultradyne 1/4 Cam, etc. It made 385 rear wheel HP at the dyno. Even driving easy only punching it once for a whole 21 gallon tank of gas I only get 7.5 MPG. Does this sound right? I fill it up with 93 Octane and I get 150 miles, thats it.
Please tell me if that number sounds ok. I really do not want to change anything because she runs like a beast.

Thanks,
JG

Reply With Quote

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules

Forum Jump

All times are GMT -4. The time now is 06:47 PM.

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

Menu

About Us