Help! Urgent - Cam set up question

Hi guys,
Have just bolted the head back on the block and done everything up nice and tight and it occurred to me I cant remember what position I had the cam in before I took off the old head.
Looking from the front of the engine, pistons 1 & 3 are at their highest point in the block and I have reassembled the head with the locating arrow thing on the cam pointing straight up.
I am reading through some manuals now to try to work out if I screwed or not and was hoping someone here may be able to help me as I don't want to stuff everything up first time I crank it over.
Thanks for your help.
Cheers,
Matt
Have just bolted the head back on the block and done everything up nice and tight and it occurred to me I cant remember what position I had the cam in before I took off the old head.
Looking from the front of the engine, pistons 1 & 3 are at their highest point in the block and I have reassembled the head with the locating arrow thing on the cam pointing straight up.
I am reading through some manuals now to try to work out if I screwed or not and was hoping someone here may be able to help me as I don't want to stuff everything up first time I crank it over.
Thanks for your help.
Cheers,
Matt