How fast are you trying to go? Iv had a bolt on H22 EG for a little over 3 years and was almost always pleased with it, it put down 190whp.

You already have a btrans, cheapest route would be h2b or a semi-built b. Numerous h2b swaps are in the 12's easy.

Although, after riding in a friends k20a integra, everything else just seems boring.