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ericjon262 · 01-12-2011, 06:44 PM

old thread, but I'll pitch in. I've got an '87 one ton dually with a TBI 454, and it gets pretty good gas mileage without overdrive as long as I don't try to haul butt. I think I was getting about 15 MPG hwy. mind you, that's Florida hwy(flatland). I'm planning to swap in a TH-2004r which I bet would net me almost 20 MPG hwy between the lockup converter and overdrive.

you TBI guys need to go to DynamicEFI.com and get a EBL flash.

fully programmable.
Lean cruise
Decel-fuel cut
rev limiter
3bar map support
nitrous controller
ect.

check it out.

01-12-2011, 06:44 PM	#20
ericjon262 Registered User Join Date: Mar 2007 Location: Displaced Floridian/Bremerton, Wa Posts: 281	Re: Better for HWY driving? old thread, but I'll pitch in. I've got an '87 one ton dually with a TBI 454, and it gets pretty good gas mileage without overdrive as long as I don't try to haul butt. I think I was getting about 15 MPG hwy. mind you, that's Florida hwy(flatland). I'm planning to swap in a TH-2004r which I bet would net me almost 20 MPG hwy between the lockup converter and overdrive. you TBI guys need to go to DynamicEFI.com and get a EBL flash. fully programmable. Lean cruise Decel-fuel cut rev limiter 3bar map support nitrous controller ect. check it out. __________________ '06 2500 HD 4x4. manual transfer case, crank windows. '88 V10 Suburban 4x4,"The Pig Rig" L05, 700r4, NP208, 4x4 beater camper fun truck project. My trucks don't leak oil, they mark their territory. Last edited by ericjon262; 01-12-2011 at 06:48 PM.