I would check the initial timing. I have seen 440s with timing set to 2° that can't get out of their own way but when set between 10 and 16° will smoke the tires.
I have had intermittent problems with aftermarket ignition switches at the connector. I usually pull the connectors and squeeze the ends to make a tighter connection.
I have this same problem with my 71 barracuda and believe it is the ignition switch. I have had original switches fail the same way. I believe the problem is that when you rotate the key against the return spring it tries to push the body apart and causes poor contact on the start contacts when...
I have a 727 for free, local pick up only. Part number PK 2892031 K 2362 6663. Date 1/15/1968. Part number list for Plymouth, Dodge, Chrysler, Dart, 67-68 Barracuda 383 4bc. Needs rebuilt and is missing the valve body. Located in San Francisco Bay area 94572.
Just got my renewal notice for the cuda and road runner. I have had Hagerty coverage for 20 plus years and no claims, so I am rewarded with a 50 percent increase in premium. The policy went up $300 per year.
don't know where the water pump housing came from but on my big blocks the boss that the bracket bolts to appears to be too short. I would try some bushings and for the belt try one a half inch longer.