Hp on a mild small block?

I currently have a 355 chevy sb with 600 holley w/ vac sec, performer intake, world products sportsman II 64 cc cast iron heads, crane energizer 3/4 race cam w/ .470 lift and 222 degree @ .05, and some entry level headers. im guessin about 360 hp? What would your guess be? Any good power adders that wont break the bank? Thanks guys!

Here's a bunch of dyno tests on small block Chevys, see if you can find one close to your combination....
http://www.ryanscarpage.50megs.com/combos1.html

one thing you can do is get bigger chambered heads and match your headers to the head

Buy David Vizard's book on nitrous, read it and put a 100 HP shot on it. It will increase your torque by 200 lb/ft. @ 2626 RPM and go down to a 100 lb/ft increase @ 5252 RPM.

Have you tuned the vacuum secondary on your 600 Holley? Look at Holley part numbers 20-59 and 20-13. They are about $25 total and will let you tune the secondary side of your Holley.

But, you really should try the nitrous. Your quarter times will be about 1 full second and 10 MPH faster. It's better than sex.

i havent tuned the vac secondary. I was actually considering on the holley street avenger 670 cfm carb as an upgrade. That nitrous squeeze is tempting but would my stock 9.5 pistons and seals survive that blast consistently?