engine seems to not run right, where to start? Options

[914 RZ-1]

I've edited in bold red.

This is bit long, but I've numbered everything, so just answer the number(s) you want/can.

My 1.7L with a Pertronix (everything else is stock) does not seem to run as well as I think it should. Seems to be missing/runs a little rough. It will hesitate and surge just a little, not accelerate smoothly, when I press the gas. This is less of a problem when it is warm.

Lately it's been hard to start. It would crank and want to catch, but took awhile. Today, it just wouldn't start, even though it cranked just fine.

I'm thinking I need to check:

1. Fuel injectors. I've replaced 2, may need to replace the other 2. They all work just fine. Used a 9v mattery and some wires t osee if they "clicked".

2. Coil: the one on there looks like the original. Do these wear out? I've seen posts on how to test them, but I've seen conflicting numbers for results: + to - 0.75-0.81 Ohms, 3 Ohms, and + to distributor output 8-12 Ohms and 10,000-11,000 Ohms. Big difference! Replaced with a Bosch Blue. I checked the voltage on the old one from terminal 15 to ground and got 10.7V

3. Distributor cap: How do I tell if this is worn out? Replaced. I did keep the old one, though.

4. Rotor: How do I tell if this is worn out? Replaced. I did keep the old one, though.

5.Wires and Plugs: mine could be old, but how do I tell if these are worn out? Replaced. I did keep the old ones, though. On the plugs, they were WR7CP with a 0.023-0.025 gap. I replaced them with WR7CC+ with a 0.028 gap.

[color=#000000]I'm assuming I don't need to look at points or the condenser since I have electronic ignition.

6. Check fuel pressure. I just replaced a bad pump. I usually turn the key to start the pump 3 times before firing the engine. This doesn't fry anything does it? Fuel pressure is fine. Made a gauge out of a swimming pool pump gauge and some fuel lines and hose clamps. Car starts right up without any priming!

7. Anything else I should check?
a. I bought a new fuel filter. Need to install it.
b. need to clean the fuel sending unit.
c. checked the timing. It was fine
d. need to check the ground strap
e. I replaced a hose from the plenum to the fuel rail (old one leaked) and when I drained the gas out, it had black grit in it. I'm guessing this is crumbled fuel line.

I've also thought of just replacing everything above, but I'd like to at least figure out what the problem is.

I've had the car about a year and a half and put about 3,000 miles on it. I drive it at least once a week. I think I'm still in the "shakedown cruise" stage, since it sat for 20 years and the PO just got it running to sell it.

Car now starts right up and runs great!