Yep! The thermoquad on a spread bore intake works extremely well (Weiand action plus or the factory cast iron intake). Here is the catch: The TQ is much harder to "tweak" in, and jet properly. I actually filed down the metering rods to richen it up. There is many adjustments on the TQ, and the back "flap" on top of the secondaries is at the top of the list. However, I've seen the TQ on a cast intake go high 10's on a 340. The Holley works very well also. The Holley is much easier to tune. But if the Holley is going to run with a properly tuned TQ, it must have dual feed and dual metering bodies. I personally like the double pumpers when is comes to all out performance. In the end, both carbs can and will perform very well.
