No needle 'neck' (sits on top of the emulsion and extends into the throat of the carb) which is a part I was after to check my theory. It looks as though he has tried to supply powerjets for different models as he has included 2 x 72's and 2 x 75's...although one kit only came with 3. In terms of quality the jets look 100%. The needle looks made from alloy so not sure about that. All seals look indistinguishable from the originals apart from maybe the top plate
Needles are stamped correct for the MC21, not the MC18, but have put them in
Emulsion tubes look good but only have 8 holes rather than the 16 of the originals (assuming they are standard) so I put the originals back in.
This is the slow jets compared. Both stamped 38 but the new ones are clearly longer so I put the old ones back in.
While not 100% the value and service seem very good. $25 for 2 kits! I thought $25 bought one kit so ordered 2 and now have 4!