340-6pac Dyno

Lee,
I have bought a Griffin radiator, but have not run it or the engine yet. Did you have to space your water pump out from the timing cover to clear the rivets in the blades of the pump? If so did it cause any pulley alignment issues? I'll be running a 3.55 gear with a 727 and an 11" 3000 stall. I'm trying to get the max out, but still be able to really drive it. It's a 69 dart convertible, and I really enjoy driving it. Check out my garage.