Fellow Car Nuts:
I may know how to turn a Coke can into a car...but I am lost when it comes to carbs. I have built several engines, but always left the carbs up to Thomas.
My brother Thomas isn't able to help me right now...so I have been left out on my own on this one. The weather is so nice, I can't stand to not drive...but I do have a problem.
A couple of days ago, I changed the jets in my car from 76 to 72. (Holley 850 double pumper). The car stunk like a gas can when you drove it and the pipes were as black as the mines of Moria. A quick check of the plugs suggested I had pulled them out of a coal mine. Remember, we are at 5000 feet here.
I called the engine builder and he thought I might have the distributor phased backwards...sure enough, it was. Reversed the wires to the distributor. MSD has had this problem for a while I have since heard. Re-did the timing...35 degrees. Seems to come in quite late though...at about 4000.
So, one step hotter on the plugs...put in Autolite #24's up from 23's and put it all back together again. While I was adjusting the timing, the car seemed to run fine. Then, of course, the car ran out of gas and backfired a little through the carb...not too much though.
NOW,
The car doesn't seem to have too much power from 1000-3000 rpms. (427 side oiler with 428 crank). Step on the gas a little at 2000 and there is a huge hesitation then it lights off. Seems to run normal at 4000-6000 rpms but maybe not as powerful as usual. (Who knows at those rpms anyway?)
The car seriously stumbles at 2000-3500 and now that I think of it seems to miss all the way up to 6000. Again, hard to tell because I really don't drive up there anyway.
The car sure smells better...but runs worse.
Any suggestions?
David
ps Jamo...good news, the experiment was a success. Car will be finished in days...stay tuned.
Carb Problem?
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