i just changed the head gasket on my 85 civic hb and got it all back together. but when I try to start the car the starter just turns the engine. I have spark and gas going into the cylinder, and I lined up the timing marks on both the cam wheel and the crank pully.
I tryed puting the spark wires in a diff way acording to a diagram i had but it was backfireing through the carburator, so i know that it can ignite but it wont with them in the right place. dose anyone know what could be wrong?????

 

double check your cam timing...

 

I have checked timing 5 times and even moved it back and forith a couple of teeth and still nothing.

 

internals...somthin fucked up, could be ur camshafts arent aligned properly, springs, retainers, valves could be bent, somthing fucked up! pistons might not be top dead center, no compressioN!? anything like that.....