Yeah never mind about the Twin TB setup, not worth it for the $$$. For that money you could get the supercharged L36(l67) easily but you have a budget to keep with..
The L36 can go reasonably quick with a custom chip,exhaust,etc. anyway..
Now a Q for you:
What do you think of the 87-88 IROC camaros, i could get a real nice one sent over to OZ for around $12-$15000AU. Whats your opinion of them and is that a good price? And whats their reputation of reliability?
IE:
I was thinking about my budget earlier. For the price of the twin TB manifold, I could pay for my entire swap! I'm just going to stick with the stock intake, and adapt it to fit. I'll see what it looks like swapped around, first, but I'll probably make a u-bend to route it where I need it.
As for the IROC, they're sweet cars. I had an older model, a 1984, and I loved it. It was wicked fast with just a 5.0L. Traction was always a problem, it wheel spins very easily. If you plan to put some serious power to it, I would upgrade the rear diff. They were a bit on the weak side. Parts are very easy to get here, don't know about there. They're very reliable, with no real problems. By 1987, it had been in production for about 6 years, so they had most of the bugs worked out by then.
As for the price, I don't know how much shipping is, but most cars like that go for around 7-9,000 in USD for a VERY good one.