400 fuel injection
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Junior User
Joined: May 2010
Posts: 98
Likes: 0
From: Kentucky
400 fuel injection
Just curious if anyone has tried a MassFlo efi system on their 400. Mainly curious as to the(if any) fuel mileage/power increases I could expect.
btw.....79 250 supercab 4x4 3.54 gears, C6, bone stock.
btw.....79 250 supercab 4x4 3.54 gears, C6, bone stock.
Posting Guru
Joined: Mar 2010
Posts: 1,196
Likes: 2
I can't speak from personal experience or even on that exact system, but I do know several guys that have gone the bolt-on fi route, and say the system generates 20-25% better fuel economy. They say they're relatively simple to install and maintain. As for power increases, I haven't heard of any actual increases, but a more consistent flow of fuel, so there's no bogging or feathering out.
Freshman User
Joined: Jun 2013
Posts: 38
Likes: 2
From: Near Gateway, Arkansas
Yep, I can read. I've seen more than a few over two years old. Not intending to flame. I felt it was a legitimate comment since I am getting ready to do a frame off restoration and looking at my options. Sorry if I offended you.
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