Here's a shot of my current fuel line routing, yes, very similar to yours Larry.
I have Motorcraft ASF 52C plugs with a gap of .48 just now ... the gap of .45-.50 has been recommended in a number of posts when using MSD systems, it seems to be working fine.
Thanks for the feedback so far guys, sounds like we're doing some good things (focus on the carb and adding the riser), but overkill with some other things (blocking the cross over, and major re-route of the fuel line). She's due fresh plugs, and a fresh fuel pump is good insurance for the long road trip I'm heading on - I'll hang onto the old one as a backup.
... I've resigned myself to losing the engine cover when the riser and new air filter go on ...
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