For the cars I've seen, a dash-4 AN line can use a dash-4 fitting directly into the stock brass junction block. I add an o-ring for insurance. On the slave cylinder end, a dash-4 AN to 1/8" pipe fitting usually fits depending on who's slave you're using. Prebuilt dash-4 hoses made to length are available everywhere and if truly AN-spec, will handle 3000 psi. Clutches operate at around 350 psi so plenty of safety margin.
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