Thanks guys!!

Compression checked out on all 8 cylinders, so must be ignition or fuel. Going for full tune-up now.

Thanks!

Compresion check doesn't tell you schit about the condition of the valve springs, lifters, any of the valve train really. It will alert you to a ring, warn valve, or head gasket problem only.

How many hours!!

Do a full service, fuel filter, and all ignition components. Not worth the risk of missing something.

Even with a roller missing off a lifter,
( or a weak spring)you'll get enough valve movement for
a good compression test #.

I would still pull the valve covers and
take a lookie.


I did have a coil fail this spring, but the symptoms
you describe don't match mine.


jt

Check timing. I had a distributor holddown bolt come loose once and the dist moved enough that the engine ran good up to 2500 and then was missing and had no power.

150 hrs.

Will check it all. Thanks!

You have a piece of crap stuck in the main jets. remove the fuel bowl and clean.

Roby

or this

Have you checked the power valves in the carb?

bglz- based on how you describe the problem in your original post, I'd take a hard look at the ignition timing on that engine. Aside from a clogged fuel filter/marginal mechanical fuel pump/water separator,my experience with engines that rev freely,but don't pull is that you lost advance or the timing chain has jumped. Again, based on you're words, it appears that something happened abruptly. The valve spring/lifter suggestions are also consistent with the symptoms you describe.--Lou

Thanks guys! It was ignition...

The owner replaced all plugs/cap/rotors and fuel filters. Runs like a champ now!

Jim