My Rv won't start no fuel getting to carberator

I may be wrong but my chevy powered rv on a P30 chassis had an in tank pump and a fuel pressure regulator. The pressure generated by the in tank pump was too high for the block mounted pump and the carb. That if it exists, is another thing that could have failed.

You might try checking for a Youtube video for fixing the problem. That way you'll see where everthing that needs checkis located. After two months of looking, I'd try it.