How long can I keep using the (safe) dry maifold ZEX system without messing up my engine? They say its safe up 75 horses but dont you think it will still do damage? Everyone would have used it right?

 

i have heard that stock internals are fine up to a 50 shot but im sure you could run a 75 with a few mods

 

Those few mods are fuel pump (255lph high or low press), and some injectors if you're paranoid. Some out of a Prelude will work fine if you can find them, or you can just run stock. Having a way to adjust fuel with an adjustable FPR or VAFC is desireable, as well. The nitrous forum at ClubSi has some good information, too.

See about replacing your clutch, also.