I don’t know if this should go under Cars & Minivan or Trucks so I’ll put
it under both, as this is a small motor home.

I have family in New Orleans so was anxious to get there after Katrina
and
took off knowing that I had a deal hole on# 6 (burned valve). I’m driving
a
1977 Concord motor home with a dodge 360-3 engine. I put in new plugs and
a
new carburetor before leaving.

It didn’t have all the power I would have liked but it ran OK and I made
it there. I headed home (Tigard Oregon) after a couple of months and got
as far as Phoenix Arizona. I don’t remember if there was a pop or loud
noise of any sort but suddenly I could barely make 20 mph. I got towed
into Phoenix where I was told that #1 and 3 cylinders were bypassing gas
(raw gas squirting out of carb). He pulled the heads and we swapped for a
rebuilt set. He seemed to do a good job and the engine ran fine. After
leaving Phoenix I was able to make hills at 60 that would have been 45
before the heads were replaced.

I made about 800 miles and then everything went to hell. I could barely
get it started and when I did, it sounded like it was a shooting gallery.
It was backfiring worse than I’ve ever seen. This started about 20 miles
from a city and I pushed on only to find that once I got above 45 or 50
mph it seemed to settle down and ran well enough that I decide to carry
on
because I really wanted to get home.

I finally made it and was glad to walk away from it.  But now I need to
get it fixed because I want to go back and work with Habitat for Humanity
to help some of those people who have lost so much. But I don’t have a
clue of where to start. I am thinking about shot gunning in a new
distributor to see if that helps, but that is only a guess. I would
really
appreciate some guidance.