Stock '69 318, t-quad vs q-jet vs holley vs edelbrock?

Best to stick with a new carb as parts are available. T quad and q jet carbs you will have to hunt for parts.
If you are familiar with the Thermoquad and know how to tune one, it will suck the other carburetors right down the intake. There's just no comparison. On the other hand, if you're not...........
Don’t get me wrong, I love the TQ. I have a collection of them. I buy them up price permitting. Just saying, hard to find parts. If you have the time and will, start your hunt. Yes, I believe the TQ is the performance leader for a street car and street/ strip car. All out race car? Holley unless your restricted by rules.