Quote:
Originally Posted by Car Nut
The plate you are talking about, was meant to replace the metering block and jets in the secondary system on a 4160 carb, the holes were a predetermined size......
It could be that your miss or stumble at low speed when you floor it is actually "bogging". Or maybe your accelerator pump is not working properly. Ignition timing might be off too. You can an adjustable style vacuum actuator (for the secondaries) and adjust the secondaries so they open slower (or faster).
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I did not mess with the secondaries on the car....I only drilled out the jets on the primary. The car is not bogging when I floor it....it just has a slight stumble while cruising at a lower RPM. When I stomp on the throttle, the car takes off and runs strong.