I also recommend that once you have cut it all to size and put them together as required that you flush them through with a hose pipe and then blow them out with an airline as you would be surprised how much crap gets in there during assembly after cutting to length!!!
It doesn't take much to get through and clog an injector etc
Yeah thats true, I've done that before on a friends build.
We ended up using marrigolds to get a good enough grip to get the fittings on
Surely theres an easier way