estimate hp and torque

[bad408]

thanks for the help, my old 408w made 400 flywheel hp@5900rpm's, 380ft lbs@3000, same block now but i used world sr heads that were poorly ported, they were cnc ported but look like they used a drill bit to do it, also i had a small hy roller lunati 218-228-536-536-112, stealth manifold which i might use again if i lose botton end torque, so i think my new engine guy said i;ll make at least 470 hp on this new combo, my old stroker was chasis dynoed last yr and made 6 runs with tuning, old motor had only 5000 miles or less on it and was not done right from the beginning, mains were showing bad wear, too tight, heads were leaking from valve guides, just a mess but still made 400 hp with all that was wrong, that engine guy was messed up, thanks again.