That's a huge cam, alot of duration for 408 cubes. I would expect that cam to be really alive from 5k up to 8k, just a guess but you might run out of air with the thermoquad
If the big TQ is used, (and modified appropriately) it will be enough for the street and strip. If this was just a race car, then a Holley would get the nod. The TQ has enough cfm in it to work at this level.
Bewy has done some work with a TQ, QJ and a Holley on his stuff that should show it’s worth. For a OE carb, there really excellent. To say it would stand up next to or exceed an after market race oriented carb is stretching it.
For the cost I have picked up TQ’s at plus the home rebuild, there very cost effective. Tuning/replacement parts are the draw back. There just not found at the local store.
