I have had terrible issues with pertronix products. I gained 17 rear wheel HP going back to points on a big block Chevy in a Camaro. Sent ignitor back to pertronix and it tested fine. Most will work fine on a distributor tester, put them in an engine firing a plug and they won't hold steady...
Has anyone else had issues with full-flow filter systems trapping air? I've had two engine failures with what is usually called the 95% filter modification. Both lost #8 rod bearing in a few 1000 miles.
I've put engines together without an inlet restrictor, a fresh motor will have about 5-10lbs at a hot idle, put the factory restrictor in and it jumps up to 25lbs. Never tried opening up the orifice on the outlet.