Technical Tire size with jamco suspension

Just curious if anyone here is running the jamco suspension deluxe lowering kit and what tire size you are running. I have a 1953 Mercury Monterey and have it dropped 4" in front and 5" in back and I talked to someone at jamco and they recommended 205/75/15 tires so that's what I got on it and with my lake pipes out the side I only have about 3" of clearance. So what size tire would y'all recommend to get alittle more clearance without worrying about my fenders rubbing?

Sent from my XT1254 using The H.A.M.B. mobile app