Well I didn't go to the 02 sensor, but will later. I hooked up the tail pipe sensor and covered it with a wind block so driving it wouldn't mess with the results. Its not as acurate as a 02 sensor but did what I needed. Its was way to lean, the three carburators were in the 14.5 to 14.7 AF ratio range at highway speed, they went higher under accelleration. These model H Rochesters don't have any enrichment circuits, the only thing to do is rejet them. As it now, its using way to much fuel. The whole unit is to small for the cubic inch, and it takes to much throttle to keep it running.
I install the stock Mono-jet and intake and went for a drive with in a hour or so of the other intake to keep the same weather and engine temperatures. It was about right, 14.0 at cruize and drops to 13.0 at full throttle. Still on the lean side but much better.
Mike, the drag strip results are pretty cool. You can learn alot from that, I wish I had that kind of inforamtion when I was racing.
Thanks again, Joe.
