Those of you thinking fuel issue, or cam timing I think miss one crucial fact. His video is with no load on it.

I cannot imagine a fueling issue that would cause it to do this unless it was massively rich and it'd be blowing great clouds of black smoke.

I cannot imagine a cam timing issue that would let it run at all and do this.

It almost has to be ignition.

There was a thread on here a couple years ago about a car going super lean in the upper rpm range. I can't recall if it was laying down like this one though. It turned out to be a fuel line sucking shut back by the tank.

This one still seems like valve springs or lifters though.

Well, that was pretty rude.
I can degree a cam...Can you build a house? Lay out a frame? Calculate roof pitch and cut rafters that fit? I would be very surprised to hear that you can but since this is a car forum, lets focus on that instead of insulting another mans trade.
You made it clear that you thought that degreeing a cam is pointless. Maybe it is to YOU but if nothing else, it can rule out an area that allows you to focus elsewhere.

Don't let guitar dude get to you. He was a line mechanic and not an engine builder or a machinist and they ain't the same thing.

IDGAF if Chrysler, or GM or ford or anyone else lines the cam dot to dot. The factory didn't give a single [censored] how they ran when they left the factory. They didn't care. It's quick and dirty to dot to dot and it shows lack of experience.


To the OP. I don't really care what is wrong with your engine. What I'm saying is to do the job correctly, and eliminating potential problems you need to STOP and degree the cam.


It's that simple. You can be a keyboard builder who cuts corners, or, you can do the [censored] correctly.

Degree the cam.

Any chance there are weak grounds in the system?

There is a huge chance of this. It's probably the single most frequent problem seen in these old trucks.

Truck is running well now as it appears to have been a combination of things.

Thanks for the help and drama!

I saw a mild 318 do this, would hit a wall at 3,500 and everyone was telling the guy valve springs but was I talking to some chiivy guys that had told me about one of those great 350 engines which did the same thing and it had AC plugs so we checked his plugs and were AC's. Problem was solved with a set of autolite copper tips!

Soo, you are just going to keep it to yourself?

Tick Tick Tick

That's more drama until

Let the truth bee told !!!

Lol

Hit a wall ? gotta hurt... Baad Ground volt drop, solution buy a mustang. Junk dat cam too an decree it already, Kongratz, I luv draamma. (Glad you got it figured out.)

I degreed the cam and now my exhaust smells like fresh baked cookies and unicorns lead the way everywhere I go.

Filled the gas tank, corrected not having full throttle, cleaned the batterery terminals, ohhhh and he readjusted the rev limiter. LOL.

So are you telling me that degreeing the cam is not going to give me the desired fresh baked cookie and unicorn effect?!?


I'm so disappointed.

That’s the kind of post I’d expect to see if one were a little embarrassed about what the problem actually was.

And....... doesn’t help the next guy who might find themselves in the same situation.

yep ^, so was it the tachometer???

I replace a fuel pump on a mustang with a 4 cylinder because it shutoff and wasn’t getting fuel. With the new pump still wasn’t getting fuel!!!!! Then I noticed the cam sprocket wasn’t turning. Dohhhh! Broken timing belt. Had a friend try to start his truck for two hours called me and I came over and found the rotor sitting on the core support. I could go on and on and on! If you haven’t screwed up your really haven’t done much.

and the answer is ???????????

Carb to small....