How to start car with no key?

There is no need to guess about valve timing with a stock cam or to guess about ignition timing.

FIRST STEP Determine if the cam has lost time, IE the timing chain is slipped. To do that get into the shop manual, you can download one here for free:

http://www.forabodiesonly.com/mopar/showthread.php?p=1970088617

Get into the specifications in the rear of the engine (chapter 9) section, and there will be valve timing specs in there. The intake opens before TDC so you can easily estimate that on the balancer.

At this point, it might even be a good idea to check the balancer for proper TDC, because the outer ring of the balancer can slip. Read here:

http://www.forabodiesonly.com/mopar/showpost.php?p=1969969924&postcount=2

Now that you know the cam is in time, RUN A COMPRESSION CHECK.

Next, set the timing. There is NO NEED to guess. There are two ways to determine that no1 is ready to fire. One is to bring the timing marks up to TDC and look at the no1 and the no6 valves. Only one set will be "loose" that is have play. The other two will be slightly open, one opening, and one closing. You can easily verify this by moving the crank a small amount and watching the no1 and no6 valves. One set will move, the other set will not.

IF no6 valves are "loose" that is closed, rotate the crank ONE TURN so the timing marks are coming back up.

THE SECOND WAY is to stick your finger in the no1 plug hole and bump the engine. When you start to feel compression, watch for the timing marks which will be coming up directly.

DO NOT set the timing marks at TDC. Rather, bring the marks up to set the timing, so that is, bring them up so they marks are at about 10 BTC.

No look at the dist. Is the rotor pointing close to no1? If not, rotate the shaft 180. Now, make sure the distributor body (vacuum advance) has plenty of movement, and retard the dist. some until the points CLOSE by rotating the dist. CW.

Now, wire your test lamp to the NEG side of the coil, and hot wire the IGN. Slowly move the dist advanced, CW, until the points JUST open. Snug down the dist.

Now set the cap on, and see what tower the rotor is approaching. It will be 'coming round' to the right. so it should be approaching the corner of one tower. THIS IS WHERE you stick the no1 plug wire.

The engine should fire with no messing around at all.

This is assuming it has good SPARK and that the plugs are clean and not fouled.

good FUEL

good COMPRESSION