I checked one of my books and it says this head is off an 86-88 truck; it is an open chamber oval port.  I don't know for sure but the intake ports may be the "peanut ports".  If they are the small ports, I would find a different set of heads.  As for production heads, the 049 heads are a great open chamber oval port and do well in a street engine and would reach your goals easily.  Like the others advised- look at the package as a whole and keep in mind that horsepower comes from the heads and how much air they can move.
 
Good luck with your build.
 
Eric

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