Shift Light Trouble

I have the proform adjustable shift light & i have the MSD 6a series igintion.

http://store.summitracing.com/partd...part=PRO-67005C&N=700+304978+115&autoview=sku

i wired up my shift light according to directions (red wire to iginition source, green wire to MSD tach output, and black wire to ground) and when i flip my ignition switch on the shift light stays on constant

i set the rpm to 3000 & when my car does 3000 it doesnt matter the shift light stays on constantly.