Thermoquad Intake

Adam listed all the intakes that are made for the T-Q except the noted LD340 that can be modded to take on a T-Q.
Offenhauser also makes intakes that have a spreadbore carb pad OOTB. But you have to make sure that is the one your getting. In example, there port-o-sonic single plane also not only comes (Or used to) in a spreadbore and squarebore carb pad, but also 340/360 port windows and 273/318 port windows. Becareful when ordering a Offenhauser.

Theres a Weiand Stealth, becareful on this one...that is just a filled in action plus intake. That can be moded to take on a T-Q.