Eddie,

1) All US cars with the 3.5 engine came with 17 casting heads. 19, 20, 22 were supplied as replacements. If someone claims a 22 was original equipment, I'd look for what other lies s/he is telling you

2) RIV != start of delivery! Start of delivery is at something like 24* BTDC, RIV is at something like 14* ATDC. RIV is completely arbitrary. It has nothing to do with the delivery cycle of the IP. There is no separate start of delivery check for this engine. I'll risk saying it's irrelevant if you can correctly apply the RIV method.

3) When the crank is at 14* ATDC, the cam alignment marks will not be matched. Check the cam lobes to ensure you are at 14* ATDC of #1 cylinder (both cam lobes not displacing the lifters). That's all.

If you can see the IP timing lug centered in the port when the crank pulley is at 14* ATDC #1, your engine will start and will probably run as well as possible. At this point go celebrate and enjoy your car while you wait for delivery the A-B IP timing light which you can rent from the good folks on the tools forum.

Sixto
87 300D