i swapped a 6.2 and 6l80e along with the dash and all electronics froman 07 escalade into my 74 k5 blazer i also swapped in the sterring colunm and i am useing the origonal key that came with the escalade ....myproblem is i have no crank signal to the starter and the fuel pump i can crank it witha power probe after the relay and i noticed no spark ...i have a feeling its the security but the light isnt flashing