i have almost finished a 347 stroker and i am wondering what kind of power it should be making, it has
-347 streetfighter kit with aluminum flat top pistons
-edelbrock performer rpm heads
-crane roller rockers
-holley 750
-holley 110 fuel pump
-hooker long tube headers
-super agressive lunati cam 2500-7500rpm
-timing GEARS(not chain)

im trying to decide on which blower to go with and im thinking the wieand one that does 6-8psi... im still looking around though

the block was bored .30 over, and 0 decked, and the internals were all balanced and blue printed

im just wondering what kind of power to expect... thanks for your help

 

With the right fuel, I would look for about a 20% + performance improvement with the setup you have put together - which is quite a lot. The hp numbers will only be shown by a dyno test. But your subjective judgment tells the tail as is matters to you.

 

I always wondered how many people actually truly knows what "blue printed" means. I have yet to see a real hot rod motor that was truly "blue printed", and have almost never found a single engine builder that even came close to doing it and even fewer that understood it, and even fewer yet that had the skills or tools required to actually DO it.
The act of blue printing an engine entails measuring and correcting EVERY dimension, clearance and measurement back the the original factory blue print which is where the term comes from.

Now onto your next stuff, WHY are you running timing gears? They truly are actually a detriment not a plus, timing chain is better, belt drive better yet.
Next if you have typical flat top pistons with the edelbrock performer rpm heads on a zero decked block you should be at 10.25:1 compression approx which is about max for pump gas with alum heads without boost, you have WAY too much compression to even consider running a blower on it. So for increased power I would say about 3 seconds worth.
Next that fuel pump will not support a blower motor with a 750 carb, even a small block.
you REALLY need to actually match your components. take the cam for example IF your going to run a blower then you really need to have a different cam then one that would be good for a NA motor, they have different requirements completely.