Torquing intake manifold bolts question

[Large Arbor]

Dave,

MSD recommends drilling two holes in the cap to allow moisture to escape. Shocking I know, but I also replace my cap annually. I just replaced the last distributor with a new one as a result of all of the corrosion. Next time it will be a Petronix.

Phil

[davids2toys]

Originally Posted by Large Arbor

Dave,

MSD recommends drilling two holes in the cap to allow moisture to escape. Shocking I know, but I also replace my cap annually. I just replaced the last distributor with a new one as a result of all of the corrosion. Next time it will be a Petronix.

Phil

I had a Pertronix in my old Vette, it worked flawlessly, no issues ever.Where do they recommend drilling these holes and what size? While i was typing this I decided to call MSD...I'm on hold at the moment, #11 in Que...LOL

So here I am trying to seal any air entry point with Dielectric grease
They also recommend drilling two holes in the 6AL box if mounted upside down(which mine is). They say condensation will form and collect on the electrical board. They want these holes in the base(feet side)

[Bernica]

All the more reasons I ripped everything out and went with Pertronix.
Also, I could swear that a few years ago when I was still on MSD they actually had a special cap available with holes already in it. I could be wrong.

[davids2toys]

Originally Posted by Bernica

All the more reasons I ripped everything out and went with Pertronix.
Also, I could swear that a few years ago when I was still on MSD they actually had a special cap available with holes already in it. I could be wrong.

Yes, that cap is there HEI style cap. It has a single breather on top. It is not enough, they still recommend one additional hole. so the air has a pathway in and out. Hmmm, why dont they just build it that way.
My cap has no vent because I wanted the old school socket style look.