Fitting TTi headers on a 273

I port matched my stock cylinder heads to the 340 gasket with a Dremel tool. I was using Cyclone Headers at the time. I did the same thing to the intake side to match the Edelbrock Tarantula TM-5. I am not recommending this, but that is what I remember doing.

Edit;
But the question is: Did I use the 273 exhaust gaskets or the 340 gaskets to match the ports, that I don't know (this was circa 1973). I am sure of one thing, no leaks.

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