raceland 4-2-1 mani to centre section connecting problem

[Morgiee]

Hi installed a raceland 8v 4-2-1 mani kit in replacement of my standard all is fine but when trying the connect the downpipe to the centre section the origional bolt/sping/nut doest fit at all. also due to the downpipe having a flange on it its the reverse of standard were the gasket goes into the downpipe to give a flush closed fit hense the bolts spring and nuts holding it together. Now cos their is a cap its been vertually impossible to connect them together and had to improvise to get it to fit. Iv'e been told by a mate that you can get a 4-2-1 connector kit to correct this issue mainely the face the thread is longer meaning everything can go on and then it can still have anough thread for the bolt to compress the spring. If this is possible to get hold of a kit were do you get them and what they called?

also with it being a raceland mani on a standard centre section is it better to have the spring inbetween the two or like on origional and have them on the end of the thread?

Thanks