i'm still in progress of putting mine together. i have all the parts but have no time to install it. i really have to hurry up before it gets cold outside. anyway, it should be safe to start with a -35% trim. i have heard of others running around -40%. increase fuel points on the higher RPM's to ensure ample fuel is achieved. if want to see the diagram/schematic for the resistor box to DSM 450cc injectors, check out my website under the "modifications2". it'll explain most of the basic stuff.
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