The first thing that would be wise to do, is replace the bottle inlet/outlet fitting for our 4AN version, so that you could;
1) Use the blue 4AN bottle heater fitting you've bought
2) Find it more convenient to have the bottle filled
http://www.noswizard.com/nitrous-ancill ... inlet.htmlYou would then need an adapter to screw on the blue adapter you have to convert it to accept our pipe;
http://www.noswizard.com/nitrous-ancill ... o-5mm.htmlThe Y-pieces are to split the nitrous (BLACK) and fuel (RED) FEED pipes in to 2, so that you can feed both pairs of Pulsoids.
You can forget the plated connector (male/male) at the top left of your first picture and the 4 way connector below it as they will no longer be suitable for their intended purpose.
The brass component in the middle of the first pic MIGHT be suitable for screwing in to your fuel adapter. The thread may be a little slack but with suitable sealer SHOULD be OK but before you try that you need to check that the red fuel pipe will secure to the brass fitting using a suitable nut and ferrule (olive/collar) and if that's OK then that should resolve that issue.
The red T-piece was intended to do the fuel take off job but as you now have a better alternative, that is no longer required.
The small stainless steel sleeve nuts with the brass ferrules are for retaining the nylon pipe to the appropriate fittings/parts.
I think that just about covers it but for some more general fitting instructions, please check out the appropriate links on our instruction page;
http://www.noswizard.com/installation-manuals