Where should the timing marks be pointing on the crank and cam when you put the timing belt back on 1986 Mazda b2000?

Well depending on the cam gear your truck may have a (A,B,C ) and not (1,2,3).On the cam gear or sprocket you want the arrow stamped in the metal behind it lined up with A! That is number 1.Now with the crankshaft you will want that lower gear pulley with the notch like a U to line up with the arrow stamped into the metal behind that gear.It is really easy to see and the ARROW looks like a V really.Sometimes this may be off a 1/8 inch but within the range cam(topside) or the crankshaft U indention.Hope this is clear enough and take your time,It took me several times to achieve this because the belt being off one tooth on my tries.