did you ever check compression, timing, did you make sure the cams are aligned correctly.
My guess is, that the timing is way off... because your firing, out the intake valve, and blowing off the throttle body pipe right, so that valve is open, when it should be closed, so, either ignition timing is ridiculously off, or your mechanical timing is off.
Triple check, that you have the cams all aligned correctly, grab one of those nifty tools, the cam alignment tool, makes it super easy (so i hear i haven't used mine yet). If your cams are aligned, then you have something wrong on the spark plug side, either the CAS is 180 degrees out maybe (someone might want to check the effect on this?) or you have the wires wrong on the posts on the coils.
