does any one know what the actual needle seat for the 787 should be ,i have read that all 787 should be 2.0 all the stuff i look up says 1.5 i bought 2.0 but they are stamped 1.2 on the bottom ,does it make a difference if i use a 2.0 or 1.5 on the 787 ,my 717 GT^I says they should be 1.2 ,can these be 2.0 or should they stay 1.2 again any and all info is greatly appreciated