the Doolz/ Mas setup? Just ballpark guess?!!?!?! Do the high horsepower ( 600+ ) Poopra's use diferent than stock MAS. I was talking to Mike Smith here in Cali and he was saying just enlarging the inlet and outlet piping on the Stillen SMIC's made a dramatic diff in the spool characteristics, so maybe optimizing the intake restrictions would be of futher benefit. New style MAS maybe? :)