Ok, well last year I had my 2X4 set up on the Plymouth. When gas went to 4 bucks I had to take them off. That and the Mallory unilite was giving me fits. So now I am back to a single 4 and HEI, I want to go back to a small cap HEI. I was talking to my dad about the clear caps they have on Ebay. HE said they carbon tracked real easy. Does anyone have wisdom on this? Sorry for the long post.
Only thing I've had happen was they cracked real easy because they're usually thinner and more fragile,.. especially when it got cold. And they always seemed to allow a lot of moisture in.