Sounds like you have a big vacuum leak. Check around the carb base/gasket, and the PCV valve connection to the carb, etc.. A small diameter hose a few feet long will act as a good stethoscope to find vacuum leaks -- hold one end up to your ear and probe around the carb, etc. with the other end, listening for a loud hissing sound. You'll know instantly when you find a vacuum leak. A bad vacuum leak will cause exactly these problems. Good luck. That's a really nice truck, by the way.
There is a short hose by the water pump to the motor that is bad about leaking coolant when they are old. You mentioned the coil. If yours works, it is better than a new one you can buy. I watch a lot of mechanic videos and have heard that said many times.
I see your brake light switch is not hooked up on the master cylinder. there should be a two wire socket to plug to the two prongs on front of the master cylinder.
Some major advice. Looks like that engine hasn’t been run a lot. Those FE engines are notorious for leaking exhaust manifold gasket’s. Beens how it hasn’t ran much I would take all the manifold bolts out replace the gaskets and put anti seize on the bolts. Do this yearly or you will never get those bolts out with twisting them off in head. When those fe’s start leaking you won’t be able to keep plug wires on it. Don’t believe me, ask anyone who has had to fight an FE engines manifolds
Some major advice. Looks like that engine hasn’t been run a lot. Those FE engines are notorious for leaking exhaust manifold gasket’s. Beens how it hasn’t ran much I would take all the manifold bolts out replace the gaskets and put anti seize on the bolts. Do this yearly or you will never get those bolts out with twisting them off in head. When those fe’s start leaking you won’t be able to keep plug wires on it. Don’t believe me, ask anyone who has had to fight an FE engines manifolds
Looking forward to seeing the truck cruising the highway.
Sounds like you have a big vacuum leak. Check around the carb base/gasket, and the PCV valve connection to the carb, etc.. A small diameter hose a few feet long will act as a good stethoscope to find vacuum leaks -- hold one end up to your ear and probe around the carb, etc. with the other end, listening for a loud hissing sound. You'll know instantly when you find a vacuum leak. A bad vacuum leak will cause exactly these problems. Good luck. That's a really nice truck, by the way.
thank you, we will check that out.
There is a short hose by the water pump to the motor that is bad about leaking coolant when they are old. You mentioned the coil. If yours works, it is better than a new one you can buy. I watch a lot of mechanic videos and have heard that said many times.
thank you for information about the hose and I will look into the coil.
I had a 66 f 100 4x4 short box single speed transfer case wish i still had it.
I see your brake light switch is not hooked up on the master cylinder. there should be a two wire socket to plug to the two prongs on front of the master cylinder.
thank you for the comment and one the next things we are doing is all the wiring .
You can see pictures of the e30 on our c3kpaddock Instagram
Nice truck! What state are you in? Definitely not in the "Rust belt!"
we got the truck from Florida
What size motor? 352,360 or 390?
it's the 352.
Some major advice. Looks like that engine hasn’t been run a lot. Those FE engines are notorious for leaking exhaust manifold gasket’s. Beens how it hasn’t ran much I would take all the manifold bolts out replace the gaskets and put anti seize on the bolts. Do this yearly or you will never get those bolts out with twisting them off in head. When those fe’s start leaking you won’t be able to keep plug wires on it. Don’t believe me, ask anyone who has had to fight an FE engines manifolds
Some major advice. Looks like that engine hasn’t been run a lot. Those FE engines are notorious for leaking exhaust manifold gasket’s. Beens how it hasn’t ran much I would take all the manifold bolts out replace the gaskets and put anti seize on the bolts. Do this yearly or you will never get those bolts out with twisting them off in head. When those fe’s start leaking you won’t be able to keep plug wires on it. Don’t believe me, ask anyone who has had to fight an FE engines manifolds
thank you for advice we have a plan to change the exhaust manifolds to headers before to long.