Square jetting anyone???

I think this will depend on how radical the engine. You should try it as delivered first assuming no leaks of course, and see how it runs. You may find it likes not having a power valve.
Well, I got the carb, stuck it on the car and so far it loves it. I am installing an air/fuel mixture gauge on Friday so I can see what its doing. It cold started and idled like it was warm (no choke). It is very responsive from stand still punch to WOT. can't wait to get some times on this, I do have an 850cfm Quick fuel to play with also.