In progress. Stock 5.0l late production short block. Bought bare Performer RPM heads and Edelbrock valves, 1.90 and 1.60. Have a GT40 intake with BBK 65mm tb and 24lb injectors. So now need to choose camshaft and valve springs. This is a street car. Any input appreciated. Dont want to waste money just want to get most potential out of these heads.