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  1. 1964-1974 Tempest, Lemans & GTO Engine Compartment
    Ok, I’ve seen similar posts on this topic on both this message board and others but my issue is slightly unique. I’m assuming it’s a timing issue but I can’t seem to figure out how to fix it. The details: I have a 1968 GTO numbers matching on the block. I bought it a month ago. It’s important...
  2. 1964-1974 Tempest, Lemans & GTO Engine Compartment
    Just getting my fresh tripower setup running this weekend for the first time since swapping from 4bbl. Its finally running pretty well, idles ok'ish, and have sorted out overheating issues (thanks lust4pseed in other thread!) Issue now is that when accelerating hard and letting off throttle at...
  3. 1964-1974 Tempest, Lemans & GTO General Discussion
    To preface this I’m not the most mechanically inclined person to ever walk the earth and have a question regarding a few things that may sound stupid. I took my ‘66 out of the garage for a cold start just to check up on her and noticed white exhaust pouring out of the left side only, keep in...
  4. 1964-1974 Tempest/LeMans/GTO Engine Tuning
    i have a 66 lemans with a 455 has a mild build by Previous owner. Lately it won't idle runs fine at high rpm. If you take the egr hose off the front of the carb it sticks air but runs better. Carb smokes badly after it shuts down. I thought to much fuel pressure so i installed a regulator got...
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