FWIW, I did use the Edelbrock no hops on an 8.5 years back. I remember I had the same concern, as they didn’t really fit out of the box. I had to do some grinding on the rear end housing and no hops to get them to fit.
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‘63 LeMans- ‘69 400 w/ original transaxle. 2.69 gears.
‘55 Catalina
‘62 Mercury Meteor-all original, bought new by my grandfather
71' GTO -original 400/4-speed/3.23 posi
13.95 @ 102.1 on street tires @ 4055lbs.-now my sons ride
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