That's an awful lot of carburation for a 470" street motor isn't it? I've always heard you should soft mount regulators to minimize vibration related issues. Best of luck on the $ from the sky.
It's a pretty radical set up for a "street car". Solid roller cam, 10.62:1 compression, trick flow heads, 2" headers, 4500 stall, 4:10 gear. It's basically a drag car I drive around town.