This ^
I made 604hp with my -5s on my Tomei motor at 27psi (still 2.6) on E85 with 1,000cc injectors twin bosch pumps and a Walbro 460 lift pump (to surge tank) and they were almost maxed out
Most GTR-s that run -5s here in Oz make between 450-480kw max on corn syrup
I think dyno read out is a bit too optimistic IMO but we all know how to settle this don't we?
you will need a drag strip
and a go pro
and a pic of 400m..........wait..........I mean quarter mile timeslip