Bob , w/o the installation cost I had about $700 in my heads , $150 for two 5C`s,( $90 for shipping ,but you prob. will need that for edelbrock heads too??)$80 for 1.65 rockers, for valve job, milling etc add`l $450. thats about $700 for both (or $800)=+- 2 to 2.5 times less.....but yes w the alum. heads you`ll get some less weight.... but as Q states you`ll need to buy more stuff too...like round port headers..
