79 f150 400m no spark
we swapped motors between 2 trucks. a 78 bronco and 79 f150. both motors ran good b4 the swap. now the f150 has no spark. bronco runs fine.
we changed the coil and module(brain box). they work fine on the bronco, but not he f150. we got out the test light and started poking around.
it appears to have power to both wires to the coil on the f150, but not on the bronco. we are stumped.