Now that she is running better, I also have determined the accelerator pump is bad! So it appears to have been a combination of at least two issues.

Ok guys, I'm feeling a little silly. I did a new cap, rotor, points and condenser on the distributer tonight and she is running ok. Seems to actually have a little less power though. Why I feel silly is i should have suspected that right off the bat. There was some wear to the counter clock side (looking into the cap) of the contacts in the distributer cap. I didn't pick that up the first time I looked at it. Could the vacuum advance possibly be off to cause that. The points were not toast but also showed wear. So did the rotor but again, I have seen worse. Actually I didn't check the old cap for hairline cracks (will do after dinner). Had a demo car do that to me the day of the derby... years ago.

God willing I will be able to work on her tomorrow night. I'll let you know. I am overwhelmed with all your help. Thanks everyone. I originally was going to drop in a 390 or a 460, however between it "belonging" and something about the 292 Y Block heritage, it will be staying. Although soon down the road there will be a rebuilding and I can't rebuild it without hotrodding her.

Thanks Again,

Ed

Twice I had similar symptons that were random in nature and very hard to track down. First was a bad connection on the wire from the points to the plate in the distributor and the second was an air leak in a rubber fuel line between the tank and the fuel pump. Tell us what you find that caused your problem. Pete

Thrush

Check fuel line for partial obstruction,sometimes something can

be in the fuel line and allow some fuel past, but not enough.

Also the starter relay can rarely develop an intermittent short

allowing current to be bled from the distributor with all sorts of

dire consequences to the engines performance.

55f100

West Monroe,La.

Do you still have the old gas filters? Cut them apart and see if there is any crap in them. Maybe some dirt/crud in the gas tank that keeps getting picked up and gets through the filter.

54 Victoria 312;  48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ

its all the same.

Thanks, all of you. I will give it a try and keep you all up to date. I do have a new set of points, cap and condenser for a 62 390, I'll try to cross check it to see if they are interchangeable by chance.

Thanks Again

hey man i had that same problem 2 weeks ago i drive my 57 f100 with a 272 y-block in it as my daily driver one day she started misfiring real bad changed out spark plug wires cap rotor and still did it so i pulled the points out put some new points gaped them and perfect hasent dont it since u might wanna take a look at your points

FORD IS LIFE OIL N GAS IS MY BLOOD

I’ll add that from your description this sounds like it’s ignition system related but the fuel system is still on the list of possibilities.  Is the ignition electronic or points?  If electronic, what brand?  If points, have you checked or replaced the condenser?  You’ve already replaced the coil so I’ll assume the replacement is a good one.  Double check all wiring inside and outside the distributor.  Does the problem show up more as the fuel tank level gets lower?  If so, then an internal crack in the fuel line within the gas tank itself is a possibility.  Is the vent for the gas tank clear of obstructions?  Something as simple as a mud dauber blocking the vent line can be tough to trouble shoot if not looking at it and may not show up on short trips.

Lorena, Texas (South of Waco)