Well Sam I don't know yet, I have not run it yet with this set up. Remember your seeing both the feed and return line. My GP Extra was set up this way so I could go underneith and get at the fuel line for filling. I hate inline fuel systems and it worked fine in the GP 300, I put a splice in the line right where the cowl is open for the muffler to exit. As long as the return is making enough pressure you can get away with a little longer line if you don't put a bunch of goodies inline.
Hope to maiden today sometime as long as the wind don't get up, yesterday it was gusting up to 25 to 30 mph but it seems to be pretty light today so far. Everyone cross your fingers.
There is room for a bit of that line to be cut out.

Miloh.