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Found 2 results

  1. I don't really know where to start, so please bare with me. About three months ago, I sent my carburetors off to Ztherapy to re manufacture them because the rear three cylinders quit firing, and my float bowl was overflowing. I finally got them back (2 months later), installed them, did all the necessary tuning that I could without the car running (including float level), and it will only fire up if I've got both carbs fully choked. It'll run at high rpms until I unchoke it, and then it just sputters out. Turns out, (from the front) the 4th, 5th, and 6th cylinders are for sure not firing, and I think the 1st isn't because its exhaust channel on the exhaust header is the same temp as 4, 5, and 6. When I pull 4, 5, and 6 spark plugs, the tips are drenched in oil, but they're still sparking. Could it be that my cylinders are full of oil, and it's not sparking? I adjusted the timing, distributor gap, and valve clearance properly about 800 miles before I had to send off the carbs, so I don't think it's any of those. I just don't get why those cylinders aren't firing. Please feel free to bombard me with questions and help me figure this out!
  2. as some of yall know, i overheated my 76 280 recently, and my machine shop tells me that the head is shot. now i'm shopping around for a new one, and i'm a little confused. my head is an N42. i've been led to believe that an N47 will fit my year and model too. what is the significance of these codes? what heads will fit my car? i'm also a little concerned about my block. the cylinders have some striation in them, and though my nail doesn't catch on them when i run my finger around a cylinder, it doesn't feel too smooth. i can't really afford to get them bored, but i don't want to get everything back together again to find out that the block needs service. should i be concerned about these striations, or are they typical?
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