2002 4.6 engine TDC timing chain

[TNT]

Please help,

I need help confirming I have the timing set correctly before putting this humpty-dumpty back together again.

My 02 Expedition (4.6/overhead cams) blew the head gasket right side.

BEFORE removing timing cover I brought it to TDC according to the mark on the timing cover/crank pulley.

After removing valve cover and timing cover and BEFORE removing the right head and timing chain, I made several marks as follows;
One on the cam shaft/bearing block,
Two on the cam sprocket/timing chain
One on the crankshaft/timing chain,
And on the LEFT SIDE timing chain I made marks on the timing chain/chain tensioner guide and one on the left cam sprocket/timing chain.

After removing & reinstalling the right head I reinstalled the right timing chain just exactly as it was removed according to all my marks.

The Haynes book says that on both cam sprockets, the dimples should be exactly 90 degrees from the top edge of the head.

The right side is about 12 degrees off from the 90 degrees.

The left side (that was never removed) is about 30 degrees off from the 90 degrees.

YET THE CAR RAN FINE W/NO CODES BEFORE THIS ALL HAPPENED

I am not a mechanic by trade or even by hobby. I just couldn't afford to take it to a shop.(just working on the basic knowledge obtained from the 70's when I used to do a little of this stuff).

Please tell me how to confirm that the timing chain/cams are set right.

Any help would be GREATLY appreciated!!

[mark v]

Moved out of New Member area to correct forum.