Dual quads versus big hammer!!!...

j par said

What do you think of this scenario? You have a 238-248 duration cam, 354 gears with 28 inch tall tires, and you're cruising at about 1800 RPMs and you just mash the gas out of nowhere?... Mind you this is a four-speed so it's not going to downshift into 2nd or into first and smack the RPMs up real quick... ?

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I'm thinking that's where you can get a lean spot if the step up springs are too weak. The weaker springs will take longer (relatively longer because we are talking about very small time elements here) to push the metering rods up out of the Jets and that delays additional fuel to help cover the load.

The plugs are certainly looking better. Heat range is just about as good as you can get it.

Keep at it and you'll be the King of these carbs. You can start writing articles and such and make some extra income. I'm serious.