ok so i got these aluminum heads but i dont know what brand they are. they have stamped by the valve cover 6 a star then 99 which im assuming is the production date and by the exhaust valves there is a serial number sn35526-2 on the passenger side and 35530-2 on the driver side head. the valves seem to be 2" intake and 1-5/8" exhaust. the roller rockers also say f72 on them but nobrand. anybody have any ideas? they look exactly the same as trick flow twisted wedge picture in summit. i have pics i will post later.