well how are the lower mounts, both engine and tranny??

like i said just get under the car and see where its rubbing, most common 2 spots are o2 sensor and sway bar. if its the sway bar my guess is either your lower mounts or you're gonna have to flip it. if the o2 sensor, get a shorter one or beat the firewall in (or if you really wanna go big, move the o2 sensor bung hole to the crossover)