Justincontre

I recently bought some isf wheels off facebook and im looking to put them on my 2010 is250 but i had a couple questions as far as tire size and will i be able to lower the car and get the wheels flush with the car. And also will i need spacers to do so
i have seen a thread around here saying that i could use:
225/35/19 front 255/35/19 rear

but they werent sure on it. I was wondering if someone else knew some more info