I have seen similar builds get ~ 300whp give or take some. I've had the heads cleaned up some with mild exhaust porting along with intake/heads have been gasket matched. I'm hoping with the heads and 3.4 pulley I'll get 300 - 320whp. Now when I go intercooled, that will be a whole new world.
Doesn't sound stupid at all, I'm curious about it to but it's hard to say. I'm guessing based on similar builds. I will dyno the car once it's done, local shop offered up free dyno time because they are curious to!!!