Congratulation s on passing 300,000 miles. I am currently driving my 7th Pinto. It is the lowest mileage car I have ever owned, with 84,400 showing. I'm the third owner. It was bought new in '78 by a family friends father, when he died in '86 it had 23,000 miles, his daughter inhereted it and drove it till '97 when the water pump went out and it overheated. She took it to a mechanic and they told her it had a blown head gasket or a cracked head. She didn't want to spend much on it so she parked it in her back yard. I tried to get the car from her in '98 while I was still driving my 200,000 mile '75 hatchback, but she didn't want to part with it for sentimental reasons. She finally gave it to me in '03, I changed the timing belt, oil, spark plugs, water pump and rebuilt the carburetor and it has been trouble free for 5 years. I only average about 25 mpg with the 2.3 and 4 speed though.
Chuck