Dr.Jeff
True Classic
Seems you could combine a smart phone app (e.g. something like what Pete listed) with a little scientific research methodology to achieve some sort of testing routine. Try to use multiple tests that show a variety of performance aspects; acceleration from a stand still, top speed, acceleration at different speed ranges and with each gear, etc. For the methodology concerns, try to eliminate as many non-relevant variables as possible so you are focusing on the differences due to the induction only, and not unrelated things (as much as is practical). For example, find a good place to do your testing with no traffic and establish a driving pattern that you can repeat each time. Make a check-list of things to do as you perform the test and follow the same procedure each time. If possible do all tests under similar weather conditions, road conditions, vehicle condition, etc. Don't make any other changes to your engine beyond the induction set-ups, use the same fuel, cargo load, etc, etc...you get the idea. Have a record-log to record the results and repeat each test 3 or 4 times to obtain an average for each one. It won't be perfect but the more objective you can be about it the better the findings. It should show if there's any significant differences between the carbs. Then you can add your subjective findings as well; were there any obvious driveability issues, did the engine stumble or die, etc. This will be a lot of work to get each set-up jetted properly and dialed-in, but it would be very interesting to see the results.
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