I tweaked my timing and carb fuel/air settings today, with some success. At first I had increased timing too much and the thing was trying to cut out when driving 20 mph or so. The idle seems better (though still a little rough), and power may be a tad better as well. Time will tell if my gas mileage improves. Anyway, I noticed last week that if I am going 80+ mph on the freeway and let off the gas I begin blowing smoke out the exhaust. It only happens when I have been going very fast and then slow down. When I got off the freeway it appeared as though smoke was coming from underneath the car. I assumed it was because the wind was blowing the exhaust that way etc. Well, this morning I crawl under the car to adjust the kickdown linkage, and I notice an oily substance all over the rear part of the tranny. Specifically, the transmission mount and surrounding area. It looks more like oil than tranny fluid. I noticed that some of the substance had gotten on the exhaust pipes and burned away. That wasn't there last weekend when I was under there. I didn't think any more about it until I was cruising down the freeway this afternoon and started blowing smoke. Is it possible that I'm blowing oil out when I turn that many RPMs? Something is definately going on, but I don't know what. The smoke starts when I slow down, and goes away after a couple of minutes (even faster if I get off the freeway and slow down significantly). Any thoughts?
'65 289 4V Edelbrock 1405 600CFM C-4 yada yada yada
'65 289 4V Edelbrock 1405 600CFM C-4 yada yada yada