Fuel Leak

[Flathead]

I have a 1984 6.2 in a Chevrolet motor home. It is a snub nose and almost impossable to see into. I notice fuel on top of block under intake manofold which appears to be comming from the front of engine behind and below upper radiator hose clamp area.
Anybody got an idea what it is and how much I have to remove in order to get to it.Any and all information will be apreciated.

[More Power]

Could be either a fuel supply line leak, a fuel return line leak or due to leaking throttle shaft seals. Bite the bullet, and remove what you have to to get a good look at the areas in question....

Jim