I've likely went over this before, maybe here, not sure.
Yes stagger jetting for the DZ302 if using the stock intake is worth while. I have mine stagger jetted and this particular intake likes the driver side up on both front and back. How much is dependent but I found on mine it liked 2 sizes up on the driver side.
So for me, I'm running headers and a 2 1/2" mandrel bent Pypes transverse exhaust system. I'm also up at 5,000 feet elevation and I routinely drive down near sea level. So I look for a happy spot where the AFR's are a little richer up here, and still safe at sea level so I don't have to keep opening up the carb.
I run 70-72 front and 76-78 rear, with the passenger side of the carb having the lower jetting. I keep both power valves at 6.5
This keeps the engine a pinch on the rich side up here but nothing horrible as the plugs look nice and it still returns good mileage with DA's in the 7,000 foot range. When I drive down to sea level where DA's are around 3500 feet everything is nice and happy.
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