My Timing belt blew while driving. We followed the Haynes book and replaced it. I lined up the Came shaft marks to the cover. The Crank Sprocket to it's marks. After putting it all back together. It won't start. It turns over but now the intake butterfly valve pushed air out instead of sucking it into the engine. Is the timing off? I ensured the # 2 Piston was TDC. Could something else be wrong Or was it operator Error (ME). Any help would be gladly appreciated.