Power Estimate

With current setup> 86gt,stock e6s, 87upper,65mmtb,pullies,msd ign, 201rwhp,280rwtrq. New set up> good ported e7s,1.6 comp RR,bbk shortys,ported lower, 65mmtb, same upper. Any estimates on the gain in power. I,m guessing> 250rwhp,300rwtrq. Maybe someone with a similar setup out there!! thanks