Hello John,
I am a Joisey Boy, and I had to look up Riverside on a map! ( I would have guessed the "other" river )
I am at exit 11 off Route 78, just a few miles west of Clinton.
I know of a few guys ( NJGT; GTNJ ) in Northern Jersey, and I think there are some along the shore too.
We should try and organize a NJ/PA get-together sometime. Perhaps group participation at NJ Motorsports Park?
Bill Nelson