Pretty sure that's not an E pump... The Diverter brackets would be on the bottom, that looks like a G or maybe even a F.
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Sorry, I'm not not up to date on my pump alphabet soup. Since I am tapped out on my hard storage, I have to forget something old to remember something new.
Anyway, it looks like an insert style pump with a Dominator bowl. The hand hole cover looks a little Berkeley like though. Hard to see in the picture on my cell phone.
They probably won't want to do a conventional intake pump because it would move the engine forward and interior space would be compromised. Could also be they are tooled for an insert pump. Regardless, still impressive performance. Good luck with it and I hope to go for a ride.
Cheers,
Joe