efi to carb
#1
#4
89 was last year of low pressure tank pumps I think... If so then you can remove high pressure pump on frame (maybe add another fuel filter to take up the space or figure out another way) and then put a low pressure return style regulator at engine.
Wiring will be easy as long as you don't get too ambitious with the cutting pliers.
I have always put carb motor in place and hook up all the existing efi wires, then eliminate from there. If you keep the ecu in place, and back feed through the green coil wire, your tach and fuel pumps I think will work (pretty sure that's how I did it on my old truck years ago). If you leave as much of the efi wiring as possible then your gauges work and everything. Just trim the unused wires once engine is running.
Do you plan on running dura spark or those ugly gm hei distributors. I'd go dura spark because it works how I want it. And you can swap the box for an hei module if you want and keep the better dura spark distributor and pickup.
Wiring will be easy as long as you don't get too ambitious with the cutting pliers.
I have always put carb motor in place and hook up all the existing efi wires, then eliminate from there. If you keep the ecu in place, and back feed through the green coil wire, your tach and fuel pumps I think will work (pretty sure that's how I did it on my old truck years ago). If you leave as much of the efi wiring as possible then your gauges work and everything. Just trim the unused wires once engine is running.
Do you plan on running dura spark or those ugly gm hei distributors. I'd go dura spark because it works how I want it. And you can swap the box for an hei module if you want and keep the better dura spark distributor and pickup.
#5
I'm going to put a adjustable fuel pressure regulator with gauge on the back of the intake.
The wiring part of it is half way bypassed. The fuel pump relay and plug melted while I was wheeling and have to put a wire from the battery to a toggle switch and to the fuel pump on the frame cause I bypassed the low pressure intake pump by removing the pump and adding a rubber fuel line where the fuel pump was mounted. I was thinking of using a points distributor.
The wiring part of it is half way bypassed. The fuel pump relay and plug melted while I was wheeling and have to put a wire from the battery to a toggle switch and to the fuel pump on the frame cause I bypassed the low pressure intake pump by removing the pump and adding a rubber fuel line where the fuel pump was mounted. I was thinking of using a points distributor.
#7
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
TWULFF44
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
11
01-02-2007 10:14 PM