I dont think its ricey at all that just fine. Ported I believe there has been people to hit the 300 mark with the correct supporting mods of course, H/C
i made 300 rwhp and 347 rwtq with my cobra intake, gt40 heads and a lunati cam. cept mine's a 347 stroker. oh that's n/a too and powerband is done by 5500 rpm.