IMHO you would need some very high octane gas to safely reach 900 with any blower and to sustained 900 HP the inter-cooler system would need upgrading. It is one thing to get 900 HP on a single dyno pull and a completely different thing to maintain that HP level for something like the TX mile. Compressing that much air creates a LOT of HEAT, causing IAT2 to climb very quickly.
It is much easier and safer to reach these levals with a TT system.
