Rhino5109

Im trying to figure out what size turbos to run on my setup, swap is going into a 70 Camaro/full race, type of racing will be mostly open road courses. Setup is L86 6.2 out of a 2017 Escalade, Also wondering have you guys with twin setups been running internal or external wastegates,Im looking to be at full spool asap even if i get less top end. Thanks in advance