once again thanx for all the help guys, u guys are realy helpfull, i have since orderd dished pistons, and i think im just going to change my charger pulley to a 2.75 because the one i have now is like 3.25, my crank pulley is around 7 so ill leave that, also i curently have speed density, should i change to MASS Air, because i want around 400hp, and i just want something i can tune, if there is noway to tune speed density, then i will go to mass air.
Let me know what i should do