EGR Block off plate

[rielly]

Converted my 258 to a Weber and the EGR is non active. I think it's causing a vaccum leak as my Jeep whistles loudy mostly during deacceleration. Is there any place to buy a block off plate or do I have to fabricate one from scratch? Think i'm going to replace my intake and exhaust gaskets for good measure too. Any decent upgrades that I should consider that will work with my Weber?

Thanks,
Tom