Actually Dave, he does not run alky injection. I will ask him again, but I believe those numbers were achieved with an e85 / 91 mix in the tank. He just posted 592hp / 630tq at the wheels. Stock unopened block and heads, aux fuel system, intake pipes, exhaust cutout, catless downpipes, and bigger turbos. Just amazing numbers. He will be building a new motor soon with forged internals, but it will be interesting to see how long this one lasts.