Hi, i need help for the offset for those wheels:

i own a 1989 rx-7 fc, non-turbo, stock suspension.

i want to put at the front :

Volk Racing GT-P, 17' x 8 with 215/45 - 17 tires

and at the rear :

Volk Racing GT-P, 17' x 9 with 255/40 - 17 tires


can anyone please tell me what offset are required,

front and rear so it wont rub at all.

remember, its for my FC

thanks guys, and look at the pic. here they are.