SB stroker guys - what fuel line diam and what carb?

What are you doing with it Mal? I forget...

318 stroker with a 4" crank - 750 AFB, Carter electric pump, Roush tank cannister filter.

Id prefer to go .5" or -8, but finding a suitable male or female threaded fitting for the carb top plate is the problem atm.

The existing brass threaded female fitting is way too small in internal diameter.........:-k