Not a problem,just offering to help. I spent countless days on my dyno with the 440 out of my dually. Carburetor and timing tweaks. Then I put a RevNNator on the truck and had to change the curve in the distributor again to keep from pinging
I really think it was worth it though,8.5-9 mpg towing a heavy enclosed trailer. Never had it's tongue hanging out either.
Keith