Thread: 78 Trans Am getting some love

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I think we got it running good for now. I went back to the 58/44 rods and that seem to help with the leaning out going up a hill, not perfect yet but better. I bumped the timing up to 36 total, and it's running it about 13.5 Cruise and the step up is 12.5 ish. It's hard to tell I swear it changes every night. I did replace my fuel pump because last time I drained the carburetor I had to crank forever to get it to fill up again. I checked and sure enough the diaphragm was leaking, but it was holding 6 psi . Maybe it was getting worse as it warmed up down the road and that possibly accounted for some changes to. The only thing I might change is the secondary orifice to a size up, but I'm not sure if I'm going to do that right away or just drive it. Anyhow thanks for everybody's help on this thing, especially 36 Sedan! , it's running better than it ever has since I've owned it. I'll pull the plugs again after he is driven more and look at the burn pattern too. If there's one thing I've learned, I now can laugh inside now when somebody says yeah I threw on a 750 and now it runs awesome! It maybe does, but without tuning it you're just throwing darts with your eyes closed.