I bought myself a trick kit to rebuild my 1850, and there is a selection of nozzle types in the kit.

What are the pro and cons of each type - straight, tube and anti-pullover, and which would you recommend for a 600cfm on a 305 with street use?

Accelerator pump nozzles?
The standard ones probably. since they are so easy to change, experiment.

Accelerator pump nozzles?
The standard ones probably. since they are so easy to change, experiment.

Yes, those, but I'd rather not have to keep changing them, as I don't trust myselft not to drop one of the washers into the intake!

I'd like to understand what they are supposed to do.