Monday, February 15, 2016

UPDATE: Edelbrock 1406 Tuning

So far, upgrading the metering rods from 0.75" x .047" to 0.70" x .047" and the step-up springs from 4" to 5" Hg has made a huge improvement to how the car drives, especially the flat-spots it was suffering from during acceleration from a dead stop as well as at highway speeds between 60 and 70 mph.

As detailed in a previous post, changing the metering rods and step-up springs is a piece of cake, and after doing so, I tuned-up the carb once more and have it idling nicely at 600 rpm at operating temperature (1200 rpm on a cold start).

It does run a little richer with the current set up, but that's okay as long as it's running fine. As a matter of fact I had it out yesterday for a car cruise in Sanford and it ran beautifully. And on the highway it now blows past the previous 60-70 mph flat spot, easily.

I still plan to install .100" primary main jets, up from the original .098" jets. Secondaries will remain the same at .095".

So stay "tuned" for another update soon.