If you are wondering what on earth is this thing is well this is the part that was only fitted to some cars maybe if a customer complained or something like that. What it does is transform the pickup from low revs from what can on some cars be very hard work by firstly revving the engine once to spin the fly wheel up then taking your foot off the gas and do it again before you can pullaway from a standstill cleanly, well with this part you can just pull away like a normal car no flat spot no fiddling with the choke to keep it running from cold etc etc!! To install just remove the Main Jet and fit this part in its place you can even do it without removing the Carburettor. Note These pumps are difficult to find now but we have located some new ones and although expensive are worth every penny