Okie dokie muffler in and working well!
Thought the backfiring was prob the distributor
so after the "Where the heck is the dist hold down bolt"
and THEN after the "oh need special bent wrench" ...used a cutoff 9/16 open end and went in from behind the dist, and ordered the proper wrench)
I got her swinging and rough set it till the engine ran much better.
Ran over to the gas station and filled her up. She starts right up but still backfires on accel. Can't get her up over 40 or so.
So what is next? The carb is a Bendix Stromberg WW
and I think the accelerator pump is sticking a bit in the well.
http://syphan.phpwebhosting.com/pics/stromberg.jpg