If you think about it in terms of the firing order, 8 fires right before 1. So if you have cyl 1 at TDC and you look down the lifter bore of the exhaust side of cyl 8 you should see the lobe basically pointing straight at you, give or take a few degrees.
Basically when cyl 1 is at TDC, cyl 8 is halfway through it's exhaust stroke.
Sound right? I'm assuming your firing order is still 1-3-7-2-6-5-4-8. I think some aftermarket cams change it. At any rate, if your firing order is different, use the last cylinder in the order in place of cyl 8.
Good luck,
Rich D.
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