The fuel line above is fer a small block anyway...
Click for link
This one is for a big block, but as Larry states above, it is for a Quadrapuke carb. Depending on the inlet location of the Holley, it might fit with a little bending, but you'll have to cut any line you get for the in-line filter...
...unless...perhaps the fuel line(s) for a tri-power would work?
It's starting to sound like a big hassle...might just as well cut/bend your own...which is what you were gonna do to start with!
If you decide to rent/borrow a flaring tool, get one that does a double flare...meaning it "folds" the outer(cut) part of the line back into itself, leaving a nice, smooth end for the hose to fit onto.
Adams' Apple2008-11-18 11:25:28______________
Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"