Fuel pressure regulator?

[Spitfire 1500 <s1500@comcast.net>]

I'm still getting crummy fuel economy on the Weber DGV. I'm wondering if 
it's high time I install a fuel pressure regulator. 94 miles and it's a 
little bit less than 1/2 in the tank.

If so, any recommended ones? There's one in Vicky Brit's catalog, but I 
bet Checker(even though I don't like them) sells one in their carb aisle.