runs like crap when heats up

[DatsunZsRule]

"I think he was actually quoting me there."

I realize that Matt but I too was going along with your comment not taking notice that it was "On" position instead of being "Start"

Either way I'm done responding. Hope all is going Ok for the member who started this thread. (avbad12)

Edited April 5, 2009 by DatsunZsRule

[Tim 76' 280Z]

I have a 76 280 as well and had this problem. I went thru all the stuff that has been suggested so far and nothing changed until I took it to the shop and had the head looked at. I had a stuck valve on the 6th cylinder and that caused the head gasket to blow between cylinders 5 and 6. The car would run just like you mentioned yours does. Cut out and die while driving and hover around 750 rpm while sitting during idle. Once I would get her to start she would puff out a flam about 3 feet long with smoke… unburned fuel from the head gasket being blown. I was only running on 4 good cylinders! GRR!:mad:

Hope this helps...