Originally Posted by 383LQ4SS

I think if you just carefully tighten the -3 -4 and -6 fittings we generally use in the nitrous world...no lube is necessary. Ill see if I can find standard Tq for the sizes. But dont forget if you really wanted to TQ the an fitting youll need a crows foot and it will need to be at a 90 degree angle to the TQ wrench.

Originally Posted by NXRICKY

Nothing they are the same. D = Dash and - = Dash
Ricky