Vents not the problem. Mopar distributors are poor quality these days. Just installed one in my street rod. Distributor cap button was 1/2 gone?? One advance spring was rubbing on the under side of the advance plate. Pick up magnet was not parallel to the reluctor - about .010 variance top to bottom. Surprisingly, when I spun it up, signal variation was less than 1 degree, so I am using it - but it's a turd. BTW, the curve out of the box is extremely slow - all in at like 4K.
distributor has been recurved, so i'm good there. i come in when i want and get to full advance. reluctor gap is good also.
it may be a turd, but it is usable. i just need to figure out how to fix this.
I spray my stock style cap out every couple of months with brake cleaner and wipe it out good to get rid of the trails.. make sure its dry(blow it out with air)before you fire it up
