Hello, and thank you for allowing me the opportunity to help you. If I am not online when you are, please allow me time to return. The timing marks are on the crank and cam gears as shown. Make sure they are aligned. As for the torque for the head bolts follow the sequence in the picture. First torque them to 88 foot-pounds and then to 103 foot pounds. Let me know if you need more help.
thank you very much. think i will be able to fix it now