10K Can, well, as your consultant, I will of course, require half. No, the SOHC is not good for power like the DOHC, BUT TORQUE, OH YES! Do not crap on the SOHC just yet. I have had two DOHC's, and they are reasonable for power, but power to dollar (even canadian dollars) the better bet is the SOHC. Parts are cheaper, and with a higher BS, it may not make the dyno queen numbers, but in the seat of the pants, you can do well. Here's a link to another thread:
zerothread?id=143562
Enjoy!
(E.S.: If it's an 89, your compression is 8.6:1, a perfect start for mad boost! GO TURBO!)