On the secondary metering block, my carb guy asked if I wanted one, he said some guys do it some don't , so I said sure do it. Supposedly only advantage is changing jets. If it doesn't fly I'll remove and put a plate on it. I have another carb getting done without it. So with a plate how do you richen or lean it out ? different plates or can you modify it ?
Aftermarket plates can use standard Holley jets, but you'll need to be sure the jets don't interfere with the float's range of motion.
Check Quick Fuel and AED and see what they offer.
