Ok, so I've searched through the forums and can't really find what I need, so here goes. I have a 1986 Bronco with the 300 I6. It was running pretty rough and I think it has to do with the feedback carburetor. This Bronco is not an on-road vehicle, so I am not concerned with emissions requirements. Also, I am not interested in spending tons of money to get it running right. I only use the Bronco to pull a boat about 1/4 mile down to the boat ramp several times a month through the summer.

So, I removed the manifold and carb, am replacing the gasket to take care of a huge exhaust leak, and now I need to decide what to do about carburetion. I am guessing the existing carb is not going to work properly since most of the emissions related stuff has been removed. My question is: What is the most economical route to getting a carburetor that will work without the emissions stuff. Should I stick with a single barrel or go to a 2-barrel? I am thinking a 2100 2-barrel will be a cheaper route, but just wondering what else I need to consider. Also, do I need to replace the ignition system?

Any help is appreciated.

Thanks,
Keith

 

This is just my two cents, I have an 86 f150. I took all the emissions stuff off of it and put on a carburetor from a seventies model 300. Though its just a single barrel, it really makes the motor scream. I had to bump the timing up just a little bit on my motor to get it tuned properly, and I re gapped the plugs to .044 which is what gap they used in the seventies. I hope this helps.

-thekingofcows-

 

Another side note, a great way to diagnose these old motors is to go buy a twenty dollar vacuum guage, that instrument is extremely easy to use and you would be amazed about how much you tell about a motor's health with one, just google how to interpret a vacuum guage.