Get the Nitto nt555r in 275/40/20 they hook great I’ve had my car up to 175 with no issues tire is great. No advantage in putting a 305 on a stock 9.5” wheel your just adding more weight and not getting any more rubber on the ground. It’s unsafe to run over a 295 on a 9.5” wheel. You need 11” wheels to get full rubber from a 305 ton the ground.