I found my exhaust leak

These Edelbrock exhaust gaskets didn't last 600 miles on #projectvertfish.
But I suppose trying to stuff the 500-ish horsepower from my BPE Magnum 408 through 1967 hi-po 273 factory manifolds creates a lot of pressure?
I'm going to get some TTI headers once my credit card cools down a bit.
Until then I'm going to try the ramflex gaskets and see if they do any better.
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