car won't start after swap

[XXX4life]

The car is 90 240 that had asingle cam. Swappped in a dual cam following the article in the tech section. Fuel and spark is good. Timing is fine. Compression is fine. The engine will give me a little sputter than nothing. Just cranks. Swapped out for some non fuel fouled plugs and the still the same issue. I tried searching to see if there is a common sensor that goes bad hat won't allow it to start. I don't yet have the consult plug to wire in. All grounds are attatched and secure. I have one plug over buy the coil that is not being used. Its a 2 pin with a brown and a black wire. Any thing I'm missing? Thanks