ProComp/Speedmaster aluminum heads

Funny how I wasn't going to run headers anymore..... but how these went on, and how I changed a starter in 20 minutes - start to finish, and how #5 & 7 plugs/plug wires are accessible, and ground clearance, not sorry one bit. They don't perform any better than the cheapies, but fitment and quality are superior.
How is there undercar exit location?