^^ LOL, motor swap, turbo, or N20 is your best bet. heck even a Stock DOHC VTEC motor with alot of bolt-ons sometimes has trouble running low 13's
The D-Series motors dont respond well to your basic upgrades such as intake, exhaust and such. The true way to make power on a D-Series is to build it for Boost, or slap some high compression pistons in it and a wild cam. Then she will come alive a bit more.