Is the Nelsen Racing Engines TT Motor worth it?

[XcYZ]

I'm going with the Banks TT on my NRE 434. Jason Wilcox, the head of the Banks Twin Turbo program, told me that he got 150 phone calls on Monday after the HPTV episode. If you have any questions, you can go here.

[XcYZ]

As long as we're talking about Banks, here's what they recommend:

Twin Turbo Kit – Suggested Engine Parameters

Displacement…………………………………. 305 to 410 ci. SB Chevy
Compression Ratio………………………….. 7.5 to 8.5-1
Cylinder Head………………………………… Stock or Raised Port 23 Degree
Valve Material………………………………… Stainless Steel Valves
Crankshaft……………………………………. Forged Steel Crankshaft
Connecting Rods……………………………. Forged Steel Connecting Rods
Pistons………………………………………… Forged Pistons
Camshaft……………………………………… Any type / low overlap
Engine Management………………………… Aftermarket Fuel and Spark
Maximum RPM……………………………….. 6500 RPM
Suggested Gauges………………………….. Pyrometer, Boost, Air/Fuel

Boost Levels

There are two boost levels available.
6lbs – This would work well with a stock engine or a crate engine like a ZZ4.
12lbs – This should only be used with modified engines with the modifications listed above.

Power Levels

With a properly modified engine, the kit should support up to 1100HP.