fassst5.0

Hey everyone need some help. I recently purchased an 88lx 5.0/5speed. it is currently a speed density car, and runs extraordinarily amazing it flat out flies and it appears to be stock other than headers, flowmasters, and catless h-pipe along with an ADS superchip. My question would i better off running the current set up or should I change it over to Mass Air. I plan for quite a few mods such as Intake bigger injectors, throttle body, 100 shot of juice. along with alot of chassis work. Thanks for any input on what I should change or should i run the current setup and what kindof extra tuning I will need if I stay speed density.