Edelbrock 340 High Compression RPM Performer Alloy Heads?

My questions was more about, is he trying to make the 340 into a high compression engine with his choice of cylinder heads, or, is he looking at cylinder heads that are to be used on the factory high compression 340 engine?

I see a difference between a high compression 340 and 340 High Compression RPM Performer Alloy Heads.

Are we talking about Edelbrock Small-block Chrysler or Small-block Chrysler 340 or even Edelbrock Small-block Victor?

Everybody is saying it............we need more information.

I'm going to season my evening meal. What spices should I use?