Where is my compression and vacuum??

Guys, if the engine runs smooth but lacks power, it is not an ignition issue. I've never seen an engine run with the distributor 180 degrees out. In every case I've seen through 40 years of tinkering, this is impossible. You're claiming that an engine will run when the spark for each cylinder is occurring on the exhaust stroke. What may happen in that instance is popping and stumbling, not an engine running and idling on it's own.
We all want to help when a member has trouble but some people that respond are completely clueless.
I had a Duster with a 318 that ran smooth but wouldn't peel out on dirt. That engine had a timing chain replaced before I got it. The cam sprocket was 3 teeth off retarded.
Yeah...it idled great and ran but it was s-l-o-w.