Thermoquad vs holley vs q-jets

The only way I'd suggest a Holley is if you don't give a care about economy whatsoever. I love spreadbore carbs. I'm also not a fan of Holleys because of the floatbowl/accelerator pump leakage issue if your car sets up for a while (it sure happens to my Holley equipped car often).

*I'd run with the 440 TQ or Q-jet, and most likely the Q-jet.