LD4B part number question

And Edelbrock won't admit that the LD340. LD4b, & D4B are better than the performer...

I read on the Hughes engine test the performer rpm (not performer) flows slightly less than the LD4B but makes more power because of runner design. I like the old school look of the LD though. I'm torn between selling it toward wheels or putting it on lol. Hot rodding on a budget sucks but that's family life :lol: