ok hey i had an 89 rx7 hatchback but something went wrong with the electrical so i bought an 89 rx7 convertible with a blown engine and i put the hatchback's transmission and engine into the convertible body ... i replaced hoses and gaskets under the intake manifold .. hooked all the wires back up correctly .. i got it started a couple times but it would never idle and now it just wont start at all ... i know its getting fuel and spark and the timing is correct .. any thoughts as to why its not starting .. it will turn over but wont crank up ... PLEASE HELP

 

Check for vacuum leaks. AFM plugged in?