how much horsepower

[420nitro]

Originally posted by 84gt347
if i build a 347 with flat top pistons , 9.3 to one compression, afr205 heads with a comp xr286r cam and a victor jr intake with a750 holley?? I'd give it more compression but i plan on adding a procharger in a couple of months.

Enough to shatter a production block. Hopefully you are planning on a Dart or SVO block with a strong crank,rods and pistons.
With out the blower I would say it is capable of making 375-450h.p to be safe. (@flywheel)
With the blower (8-10 psi w/o intercooler) over, 550h.p@ flywheel maybe more. Depends on WAY TO MUCH STUFF without sounding stupid.
Hope this helps
P.S
To get 9.3 to one compression with the 205 heads I believe you will have to run dish pistons.