Build thread- 73 duster, forged 5.7 w/ PS and AC, 5 spd, big brakes and floater rear

Uhcoog1,
Wow, congratulations on getting her on the road for some test miles. You'll definately have "bugs" to work out in the beginning with so many mods not designed by the factory. That's just part of the process.

On the clutch, you're definately sucking air somewhere. I would start by re-tightening all the fittings, just a little more than you feel is safe.

Just a few questions:
Are any of your fitting junctions in stainless?
Do you have any teflon tape on any of them?
If you have teflon tape, which ones (what style of fitting or junction, such as AN or pipe fitting)
Are you absolutely sure the style of flare (degree of flare, etc.) are a match?

My friend went throught this with his Cobra. He felt defeated after bleeding it several times with his son. I got together with him and it turned out he had the wrong type line flare on the master cyl. fitting. It would suck air within 20 minutes or so of driving it and he'd have a hard time shifting.

I had a new line made for him with the right degree of flare and no more problems now.