im not so sure about that. At most, you would see 350whp on a dyno jet IMO.
for comparison…on a Mustang dyno that wasnt calibrated correctly, I saw 474rwhp.
On a dyno dynamics, 412rwhp
on a dyno jet, 400rwhp.
got dyno sheets for all.
go to the track, see what it traps. Traps dont lie about power.