Ford 860 gas line

[Firefiteb]

I’m installing a new carb and gas filter on ford 860. Is it a double flare for inlet gas line?

 

[jaxs]

Female threads with male flare inside are double flare. Male flare in combination with male threads is single flare. Pipe with male threaded nut behind flare is double flare. Pipe with female threaded nut behind flare is single flare. Got it ?