Intermittent miss

Car15 said
340 during acceleration under load usually around 3 4 grand hot or cold no mods really just the distributor ,flamethrower coil and a holley

I would start with the ignition system and timing first and if everything looked good move on to carburation.
Since you have a Holly, you know about power valves?
If not there are some guys here that can help with that, because I'm not a Holley pro.

Car15 said
No clips on the pertronix like the mopars have this is a L shape rod you push down and turn into position

I hate those things even when they work right.:D
They do normally work fine as long as the spring is capable and the cap fits though.