Edelbrock heads Vs Jheads

Hey Guys

I have been looking into buying a set of Edelbrock heads for my 340 demon for some time now. I recently came across a machine shop that has a set of jheads in stock that has some work done to them.

i don't know to much about the engine as it is new to me but the engine is 1970 340, 750 holly dp, edelbrock ld340, and a set of full length heads not sure of brand.

I wanted edelbrock for the cool factor and the performance upgrade. but after find these heads im not sure what i should buy. The price is about the same.

This is the info on the Jhead from the shop Jheads fresh valve job, New 2.02/1.60 valves stainless(undercut) #3418915 E no springs, with seals/bronze liners and Serdi 4 angle valve job, surfaced ready to go $ 1500 pr