Not sure if this was already posted here or somewhere else.
http://rvmorsemachine.com/product.htm
I did the same thing, here's how it looks - you have to drill an offset hole through the plate and bend the MAP sensor vacuum tube a little to make it fit.
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Here's how it looks on the engine, I had a 30LB spring running ~28PSI at the time this was taken. The only issue is you have to unbolt the Throttle Body and lift it up when you want to adjust your pressure but, you can leave the fuel lines hooked up and adjust by turning the key on, engine off (of course), the fuel pump should run for ~2 seconds and build pressure so you can see where you're at, HTH.
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