Thank you, Terry.
The NHRA has rules for vehicles which ran at tracks sanctioned by the NHRA, and while some non NHRA-sanctioned tracks follow the NHRA rules, others have their own rules which may be different than the NHRA's. Nobody (that I'm aware of) has exclusive rights to the word "gasser", which has become a more generic term in the automotive lexicon, for better or for worse.
Nice work oon the gasser truck, Pete, especially the metallic blue accents in the interior. Nothing says '60s Cal Custom quite like metalflake.