Those are the heads I ended up buying. Came rebuilt from Rock Auto in great shape. Had to change out the springs and cut the guides down to fit the cam, but all should be good now.
You want to use the light original single coil valve springs at first for breaking in the camshaft, you don't want burn the lobes off your new cam with the higher pressure valve springs as your cam is breaking in mating up to the new lifters.
Then you change out the valve springs after the cam is broke in, with air pressure in the cylinders to keep the valves up and shut while you are changing out the springs.
