Timeing set alignment question

T67POWER said
The only way the old set showed the mark on the cam sprocket to be pointing at 12 o'clock was because it was on the exhaust stroke instead of the compression stroke.
The cam mark is at 6 o'clock and the crank is at 12 o'clock when on the compression stroke and at top dead center.
I just helped a buddy of mine today, install his cam in a 318.
Must be that time of year.
Use a strait edge to make sure you have the chain on right and line up the marks with a strait edge.
GOOD LUCK8)

Thanks, but it sure blew my thumb pretty good. It would seem that if the exhaust valve was open you would`nt feel that much pressure?? It still should be ok just to put the new set on the same orientation as the old? seems it would have to be, or otherwise it`ll be 180* out, correct?