I talked to Cometic and this is their standard design for the FE gaskets. I believe the exhaust chamber has been laid back on my ProPort heads which may be the cause of the overhang. My old round chamber design 4.165 Cometics did not interfere so I ordered a new set of round 4.170 MLS gaskets. I'll know in a week. Jim

Hey guys, I opened my Cometic MLS head gaskets this afternoon to install them and believe they may have been miss-built. They are supposed to have 4.165 bores. While part of the bores are 4.165 they are oblong and open out to 4.3" and barely have any raised lip for sealing. I am going to call Cometic on Monday and check. Just wondering if any of you have seen something like this before or not. I have had 2 previous sets of these and they had round 4.165 bores. Thanks for your thoughts. Jim

Thanks everyone. I do have some EZloks. I think I will do like you said on an old post and use an old shaft and pedestals to make jig to accurately drill the new larger holes. I found some 3/4 inch long inserts so they will have thread engagement the whole length of the hole in the head. Thanks, Jim

Hey guys, what's the max spring pressure you would run with T&D street rocker set up in aluminum Edelbrock heads. I am set up for 650lbs over the nose. Should I consider putting in time-serts while the heads are off? T&D said it would be no problem, but I worry about pulling a stud out of the head. That's the problem with machining taking too long, it gives a guy time to worry about stuff instead of slapping it together and just running it!!!! Jim

I have Edelbrock's with 56cc chambers. I am going to run E85, so running the .045 Cometic MLS head gasket would give me a little more compression. If you suspect I would see piston to head contact with .036-.037 clearance I would just get the .051. I wish they made a .048. Jim

Thats what R&R suggested also. Thanks, Jim

Thanks for the responses.  I'm going to move forward with it. Now hopefully my 2 Molnar rods  rods I am getting are close to the same weight as the old molnar rods so I don't have to rebalance.

Hey guys, as I get closer to 60 I am getting a propensity to create more humidity (sweaty). I was having a problem with my mask fogging in both summer and winter as my shop is kept at 50deg. I didn't want to run a fan as that interferes with my shielding gas. So I drilled a hole in the top of my mask and mounted a low voltage computer fan in it. I run it off a 9v battery which lasts quite a while. I put some ducting in to direct the air flow over the inside screen. There is an on off switch on the outside of the mask. It is quiet and effective and really helps me see my puddle without stopping to clear out the fog inside my mask. Just thought I would share. Jim