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Ok...I'm no expert here, but I think you should line up the mark on the crankshaft sprocket with the mark on the oil pump..which will be on the driver's side. Since you think the timing is off and you have the heads back on, you can't see the #1 piston to see if its at TDC. What I suggest you do is take your compression tester and put it on cylinder #1 and then manually turn the engine over and see if where the compression is highest lines up with the crankshaft mark. NOt entirely sure that will work if the timing is severely screwed up, but when you have the highest compression, your #1 piston should be at TDC. From there you'll have to adjust the cams. If the camshafts were put into the heads correctly and the sprockets were put on correctly, then you should be able to line them up. Don't rotate them all the way around to line them up though....move them in whichever direction is the shortest to get them on the marks.... i.e. if the mark on the sprocket is just a little clockwise of the mark on the backing plate, carefully move the cam counterclockwise to line it up. If its a little behind, move it clockwise. I think you can do that and be ok....if you go all the way around you could damage the valves. If the cams were not set in correctly, then you'll probably have to go back in there and do that. Note that I'm not entirely positive about this...I've not done a head gasket on one of these things before. Short of taking the heads back off to be sure, this is the only way I can think to fix your problem. Take it with a grain of salt.
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