just purchased the car not running. 159,000 miles. PO ran the car last 3 or 4 summers. this spring filled tank and brought it to car wash where it would not start. Car would fire and run for several seconds...almost sounding like it would start and run but wouldnt. I have dissassembled and reassembled wur...system pressure 70 psi and control pressure is 20psi. Did not help. Flow check showed 18 ozs in 30 seconds. Also checked timing chain 6 degrees stretch. Distributor cap had vaseline on all the contacts. cleaned contacts and rotor and an improvement car starts and runs at a very low idle for 10-20 seconds and dies. Would a frozen auxillary air valve cause the car not to run? Have statically checked distributor position looks ok. Have not turned car over with starter and check timing with timing gun. What areas should I look at next?