Any good diff shops in your area?
I've used and referred people to SF Differential, if you can't find a local place. They've done everything from street to race stuff. John, the owner, is an old-school dude and has been around for a long time.
Please read through this link before making further comments on exhaust dynamics...
http://forums.hybridz.org/topic/81941-exhaust-tube-sizing-i-did-your-arithmetic-for-you/
http://forums.hybridz.org/index.php?app=core&module=search&do=search&fromMainBar=1
Link not working. Type in "RB26 DCOE" and it returns 9 results, not counting your thread.
Dangit! Saw a black 280Z parking on Division street in Portland by the Salt and Straw. We had just left and the wife wasn't feeling well, otherwise I would've said hi!
Hello Northwest Z-ers! My wife and I are heading out tomorrow for a week-long road trip from SF to Seattle. We'll be in Portland on Monday and in Seattle Tuesday-Friday. I'd love to hang out with some NW Z-heads! Shoot me a PM if you're free and willing.
P.S. We're taking the Outback and will have room for parts!
I'd run the P90 and be done with it. You'll be at stock NA 280ZX compression with the flat-tops. Run the head stock and use it as a backup once you put the turbo motor in. This is the simplest and quickest path to enjoyment. Plus, the P90 has square exhaust ports which will match your header. It may not be a monster but it'll be a fun, torque-happy motor.
Good find, Jim! Your car should be really sorted now. As for JCCS, we're still deciding. There's a lot of stuff going on that weekend but I really hope to make it out there!
I love it! I actually got an email from the kid that I bought the car from, when I was selling it. The shop teacher saw the ad and he forwarded his teacher's email on to me. It's so interesting to get to know the history of these old cars. Love the work you've done to it, keep it up!