I'd like to ask everyone here if they can come with a way to build a 275hp (net) 250 and get 26 to 28 mpg highway... max budget is $3000.

With a stock 2005 4200 in my GMC I got 27 mpg with a 4l60e 3.50 9" and 27560R15 tires at 75 mph.

Up to the challange.. \:\)

Last edited by efi-diy; 06/20/12 03:45 PM.
51 GMC 4.2 turbo
Can't solved today's problems using the same technology/thinking that created them