I have a 65 Ford F100 with the 300 straight six. I'm thinking about installing an Edelbrock E-Street EFI Systems. Everything seems to be pretty straight forward except when it comes to adding the O2 sensor. I'm gonna be installing a Hedman long tube header, this header has two out lets. The EFI system only comes with one O2 sensor. Can I make a "Y" pipe and then put the sensor down stream of the "Y" pipe. I just don't know if you put the O2 sensor further down stream of the collector or collectors will it lose its effectiveness.http://http://www.edelbrock.com/auto...e-street.shtmlhttp://http://www.summitracing.com/p...9306/overview/

 

If you add a 2 into 1 Y right at the header collectors and put the O2 in that part it'll work fine, but it will also work fine if the sensor is located in one of the primary header collectors too. This throttlebody EFI system has no control over individual cylinder fueling so it really doesn't matter if the O2 sees three, six, or even just one cylinder... although getting an overall average is ideal.

 

Thank you Conanski, but here is another question. I am not seeing where this system is able to handle two O2 sensors, so should I splice?

 

No you can't use two O2 sensors.

 

Well disregard, I guess I didn't look good enough because that EFI system won't work on my straight 6, so does anyone know of a an EFI system that will work on the 300 straight 6?

 

What is the problem with that system? The fact that your using it on a 6 cylinder? Or it won't bolt to your intake?

 

Speaking with the support tech it won't bolt onto the eng

 

If it won't bolt to the intake, change the intake.
Most of those aftermarket FI units are designed to bolt up to an "old school" style 4 bbl carb intake.
I know that there are aftermarket intakes made for the Ford 240/300 I6 that have a 4 bbl bolt pattern.

 

Why don't you look at installing an OEM EFI system? I'd suggest you get a '90+ donor truck and pull everything needed for it, the EFI system is pretty much self contained on the early trucks('91 and older) and the '90+ truck has a simpler fuel supply system.