Not sure if this helpful .. but I have the stage 2 kit with 650cc injectors smaller pulley (85mm) from kraftwerks ... I didn't bother with the stabilizer I upgraded to return fuel system ...... I thought the piping was the same except the inlet pipe...and the motor mount will be hard to find other than a used kit or gamma ....you would prolly be better with the smaller unit converted to the 1.5 than buying the larger unit I max my stage 2 unit out at 12.5lbs and I think you can get 11lbs with the smaller unit ...if I remember correctly
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