I have an 86 f350 with the 460 i get 8 mpg yeah its 4door 4x4 lwb.But I was wonderin if anbody had tried any of the stand alone fuel injection units yet?

I'm thinking about going hei distributor and stand alone fuel injection what are ya'lls thoughts?

 

I have never used one, but I have seen them on ebay once in awhile and have been tempted. If you are expecting to buy one of these and get better fuel mileage, I think you will be disappointed. Talk to people who have the official Ford multiport fuel injected 460's in the later trucks. I don't think they get much better.

 

I'm working on a MSII setup for my bronco's 300, but uncle sam got in the way. hoping to have it done next month.

but for a stock setup, there really isn't alot to be gained for the money involved. unless of course you are obsessive.

 

I am rebuilding my 86 F150, and am installing the FAST EZ-EFI system. It's not running yet. Motor is built, but now I am working on the fabricating a dual exhaust to mate up with my BBK equal length shorty headers (yes, I had to trim the firewall just a tad). I am hoping for better fuel economy, as I have aftermarket heads, EFI, MSD ignition, etc. The FAST EZ-EFI system will let you tune for economy, performance, etc. I'll let you know when I finally get this thing running.

To move your truck at a given speed in a given gear, requires a certain amount of power. To increase fuel mileage, one needs to reduce the amount of power required or increase the efficience at which it is generated.

The bottom line is fuel consumption is based on efficiency. Heads, pistions, and cam all play a role, but the driveline efficiency, transmission and differential gearing, tire size and design, vehicle weight, and aerodynamics are also major factors. Lifting the truck will increase the flat plate equivalency resulting in increased drag and lower fuel economy. So there are things that can be done to increase fuel efficiency, but many may not be cost effective, or really feasible depending on what you do with your truck.

Just my opinion, mind you.

 

Intresting points i think i may buy a holly 650cfm.Cause i havent had much luck out of these edelbrocks.Dont get me wrong their simple and good power.But the ones i have had wern't very reliable.

It seemed like the second you go on a hard pull they start cutin up. All the old motorcraft carbs i've had seemed to take rebuils good and were really reliable.

What do yall think?

 

I'm exactly opposite on the holley vs edelbrock arguement. no power valves to blow, no float bowls to leak, and i love how easy it is to swap rods and jets.

however the motorcraft 21*0's and 4100's were great compromises