Nitrous Yes or No ?

You might want to verify the plate jetting. That's a FAT tune up...

Most any n2o plate with a fuel jet bigger than juice is going to be fat.

Maybe call Monte Smith and ask him for a tune up. Most all kits I run the fuel jet is usually .008-.010 smaller than the juice jet.
everthing ive heard or read on the internet says bigger fuel jet worst thing with nitrous is running your mix to lean this is carburated base plate not an efi just looked at a nitrous set up site only one that runs a smaller fuel jet is a efi single fogger.