anything is suitable for street.
drivability for street is pretty rough. i had toda c's and they were pretty full on aswell.

all depends on how you want your drivability. stopping at each lights or in traffic and your car idling like a monster with your idle just up and down up and down might do your head in.

and with the m22x its not much drivability but if your going to go build a car why not go all out ....

ive got skunk2 stage 3 in my k block. and its pretty rough. haha

if you go for bigger tb and im then expect the car to be louder.and drivability after getting a 68+mm tb for the car to idle like a gangster monster.