forced Induction cylinder heads

The Edelbrock aluminum heads for the early 340's are machined .060" in the chambers to clear the 340's proud of deck pistons. They have a 65cc chamber that's basically an open chamber. https://m.summitracing.com/parts/edl-60179

I've got a '68 340 with the pistons .018" over the deck so I wanted open chamber heads too. I had a set of 308's cut for 2.02/1.60 valves, cut for dual valve springs, chambers cleaned up after the valve job and heads stage II ported, ended up flowing 264 cfm @.500 with a 65cc chamber. By the time I was done I had almost $1,500 into them (US), and pretty much could have just bought the eddy's.