Up hill? Like Sunset point? Out of curiousity, have you read your plugs lately? Gas mileage gone down?

 

Similar hill. Up/down highway 87.

Gas mileage is about average. Haven't read plugs lately.

 

Seems like someone mentioned float height changing earlier. I don't know why it would on a Carter style Eddy. But when you mentioned messing up at altitude that is what came to mind.

 

I don't know that elevation has much to do with it. It ran just fine up at 6,000ft. (My elevation at home is 1,000-1200ft) And ran great pushing it so hard. Seriously I wasn't going any less than 75 most of the way down from payson. Mostly 80+.

Climbing the last hill coming back into town, my buddy I was following had got in front of me quite a bit and I was going to try to catch him. So just as I started up the hill, I was running 85mph and dropped it into 3rd gear, which brought RPM up close to 4000. And I really laid into the throttle. It ran for about 2-3 seconds like that before I noticed it starting to cut out. So I put it back in 4th gear OverDrive and backed off of it. It never completely died on me, but it never came back to normal either. I drove another 5-6 miles up the road and pulled off the highway at the next opportunity. It was still running, but not at 100%. So I opened the hood and let it cool off for 10-15 minutes in the cool night air. After that I fired it back up, got back on the highway and kept hauling *** another 40 miles back home, absolutely no problem.


Soooo, I think my next step will be to bend a new fuel line from pump-carb, routing it farther away from heat sources, and see what that does for the situation.

 

**** has been driving my green hornet for work, pizza delivery because we are in process of a disc brake conversion (that he won't put the time in for) it started doing the same. Turned out to be vacuum lines.

 

Hmmmmmm..... interesting. Only vacuum lines I have are for the distributor advance and my vacuum gauge in the cab. (And PCV). I know They're good.

 

It actually was the PCV but check the rubber vacuum plugs on the carb.

 

Ain't got none

 

I had the PCV hose crack one time a few years ago. Truck ran like garbage and there was a loud hiss from the obvious vacuum leak. Popped the hood, wrapped it in duct tape, drove home haha

 

It did it again today. Twice actually.

First time I pulled over, looked it over, didn't touch anything, let it sit for the usual 20 minutes and fired it back up and kept on trucking without problem.

Second time, I was in a hurry to be somewhere. So I took that usual 20 minute break, but I changed the plastic fuel filter that I have pre-pump and I completely removed the carb filter and just ran a straight line (like it's technically supposed to be).

On the way back from that second trip, I really pushed it. 85+ for 20 miles towing my flatbed. It ran fine. But then again, I can never say when it's going to do it. So i can't say for sure if I might have fixed it or not. I guess only time will tell.

 

I had a Holley do that but not an Eddie.
Maybe you’re going to fast the wind is sucking the fuel out of the carb

 

I think you might be chasing the wrong dragon so I'm going a completely different direction: Rust in the tank clogging up the filter sock on the sender and the lines. It might even have collected in the sending tube if the sock has (most likely) disintegrated. It may also have got all the way to the inlet on the FP. My wife's Mustang had this random starve issue and that's what it was. Replaced the sender, cleaned out the tank, lines and pump and it went away. The rust would collect while pumping, block the fuel, kill the engine. Let it sit for a bit and it backs off enough to go again. There were large flakes in the sending tube which had it down to about 30% opening, so it was easy to starve out with just a few more flakes. Eventually replaced the tank too with a 22 gal unit. Once they rust, it's a perpetual process.

 

I appreciate the insight. My tank is somewhat rusty, and I had thought of this possibility as well. Perhaps I will take the lines apart and poke around with some wire.

 

351, if you still have the filters you took off, try blowing through them. If you can't or it is hard to do, you probably found your problem.
You may have to pull the tank but not yet. Easy things first.

 

Pull the air horn off the top of the carb and see if there is any rust in the carb?