318 timing............

You really should get a timing tape or a dial back timing light so you can see exactly what's going on. Or, at least get a 39 cent protractor and tape it to the top of an old rotor and tape a piece of wire to the ditributor to use as a pointer and measure the amount of advance in the distributor. Double this number to get crank degrees.

Also, if you pick up the MP spring kit use only one of the springs to replace the stiffer of the two in the distributor. This will have the timming all in in that 2500 rpm range. Both light springs has it starting to come in at idle and all in around 1500.