Quote Originally Posted by 36 sedan View Post
Unfortunately, like most of us, I believe he changed the fuel filter after he started having problems instead of when he installed the new carb.

Also, check for a vacuum leak, a vacuum leak can cause this type of problem too (vac gauge will tell you). The choke will compensate for the increased air until the choke opens, at which point the metering rods won’t operate correctly because of the low vacuum.

And, if you have an automatic transmission check the vacuum line connection at the transmission to see if it has come off or burned against the exhaust (often overlooked).
All good thoughts. At this point the most important thing to me is for Treygan to reply about his symptoms, and especially if it's accelerating OK on initial start. Without that I'd just be guessing.

On the fuel filter, if it had a decent in-line filter in place and he changed it out and still has the symptoms I don't see how he would have got crap in the carb unless the filter ruptured, and I've never seen that happen in all my years. Your idea about vacuum affecting metering rod action is a great point, and I had never really considered that possibility. Hopefully Treygan will get on-line and give us a few more clues!