sbc head comparison and charts

[Swims350]

I just done a quick search on some small block chevy head stuff and came up with some good info and charts figured I'd pass it along.

http://www.ryanscarpage.50megs.com/combos1.html

that one is dyno proven combos.

head comparison, aftermarket and stock.
http://www.purplesagetradingpost.com/sumner/techinfo/heads1.html

RHS heads.
http://www.racingheadservice.com/Information/Technical/FlowCharts_New.asp