If you are sure your cams are far beyond alignment, and don't recall the original alignment, there's only one thing you can do at this point. You're going to have to install the chain as is, after removing all the rocker arms (to ensure there is no valve/piston interference), and calibrate the timing. Make sure you know which rocker arm goes where for proper re-installation to minimize uneven cam wear.

1) Turn the engine to TDC for the #1 cylinder as indicated by the marking on the hub.
2) Check the mark for the driver's side camshaft. Disconnect the chain from the sprocket and rotate the camshaft to TDC if it is not already. Reattach the chain to the sprocket, and turn the engine another 2 full revolutions (720°) to TDC - if you pass the mark, do NOT turn the engine backwards but rather go forward another 2 revolutions. Ensure it's aligned properly, and if not, reallign and re-check until it's spot on, or within 3° assuming new rails and a new chain.
3) Repeat step 2 for the passenger side camshaft.
4) Making sure the engine is still at TDC, remove the distributor cap and ensure the rotor is within 10° of the TDC marking on the distributor, and if not, remove the distributor, rotate the rotor into position, and re-install. Adjust until the timing is as close as possible.
5) Re-install all 16 rocker arms. To make life easier you can rotate the engine forwards while doing this so you do not need a spring compressor.
6) Start the engine, set the ignition timing. If engine timing is not close enough, time while cranking, then time once fired.