[Murlo26]

At 570whp (DJ numbers) mine was hitting I think mid 4.7 V's at most. I think 600whp area is doable, I'd say 620ish will be the max. I am hoping to get to around 620ish with manifold work.

Just checked, I hit 4.73V at 8700rpm around 30psi (like 29.8 or something).

So still have some room, that was on my 37psi tune.