Locating dimple on timing gear

[J Franklin]

Originally Posted by erdaviesjr

So, if I had set my timing to what I thought was TDC, but in reality it was the top of the exhaust stroke on #1 piston, how would that play out when I tried to start the engine or run the car? I assume it would not start easily, run very well, and would backfire like crazy?? or not run at all??

You are correct. I use my thumb over the plug hole to know when it is coming up to TDC.