My 5.9 into '68 Dart swap

Got both heads bolted on and torqued. Then tried a little test fit of my Doug's D453 headers.

Would you please do me a favor? Would you take a picture of the exhaust gasket lined up with the header port and a similar one lined up with the port on the head?

Trying to figure out if the Doug's headers will seal on a set of MP R/T heads with a similar casting to your.