Any one heard or have a set of these pro comp aluminum heads that are selling on ebay. are they worth the money or should I spend twice as much for a set off AFR? http://cgi.ebay.com/ebaymotors/PRO-ALUMINUM-FORD-HEADS-175cc-302-347-351-408-427-TMD_W0QQcmdZViewItemQQcategoryZ33617QQitemZ8054936025QQrdZ1QQsspagenameZWDVW
Link?