I was just looking at the medice mfg on ebay, they will clear the guide plates? Great. Thanks MarkB+B Makes a spacer for the BB Ford, P/N 128-63930.
Blue Thunder makes a 1.190 version, P/N VCS-429
Medice Mfg makes a 3/8, 1/2 and a 1" version - VALVE COVER SPACERS 3/8" FORD 429 , 460 7 Bolt Big Block BBF With GASKETLOK | eBay
We just met....so that's all the Googling I'm going to do until you buy me dinner......