87 Grand National 100k. Totally stock. Fuel pressure is 29lbs. at idle (pump/filter recently replaced, tried a brand new coil I had, seems to drive a little better with MAF disconnected, but still intermittently sputters and seems like someone is pulling the coil wire on and off, sometimes dying at idle. Sometimes so bad that it wont go 60mph for a few miles then its ok. Any suggestions? Seems fuel related to me, but I don't know how or what regulates injectors.
MAF sensor was bad.