[Craig Hendrickson]

I also mentioned to Mike and Joe and it was an important part of Ken Crocie's Car Craft T-F tune: the original Turbonetics wastegate was only good when the exhaust was restricted with the original stock "pancake" cat and also the single behind the axle muffler. As soon as one opens up the exhaust system (dual Hi-Po cats or omitting same and good flowing mufflers), the Turbonetics wastegate cannot bypass enough exhaust to control the boost. If you note on Ken's CC setup, he used a much bigger wastegate relocated to the front 3in turbo inlet pipe. That worked.

I still have a Turbonetics wastegate on my Revival Firebird and on WOT, the boost will bang over to 10psi almost instantly even with the wastgate full open. Fortunately, I have an auxilliary fuel tank that I can fill with 102 octane (racing) gas and switch over to that if I want to make a full out run. Otherwise, I keep it about half throttle (a couple PSI boost).