Best SBC exhaust gaskets for CMI SS headers
 

Now that I figured out the easiest way to change my plugs is to just swing headers out of the way, any tips for best replacement gaskets?
Fel-Pro okay or does a guy need to spend the extra $$ on Mercruiser/ marine specific gaskets?
Mine leaked a bit after bolts backed out, but once exhaust seeped past they've never been quite the same.
Do you lock tight or vibra-tight the hardware?
They were lose so often I started to carry a wreck with me