My Can Am engine came with the Lucas/MacKay injection, but I was after a lower profile look and didn't want to view the road through an aluminum forest. (BTW, per the ground-off injector bosses, the cross ram had been converted by its previous owner to Lucas MFI.)
The Edelbrock's bad rep is part of the challenge of making an externally 1970 period-correct combo run like a more modern version. My theory is that the dual plenums of the Edelbrock, Weiand, etc. designs are the issue. David Vizard told me he and Terry Walters spent a week trying to get one to work right on a BBC and gained 100 HP when they gave up and went to a good single plane. However I used the GM single plenum Z28 cross-ram on this car, my '70-1/2 Z-28, with excellent results and the Barton version of the Hemi SP cross-ram is a staple for a nearby specialist's 572" -676" Hemis, some producing in the low four figures NA.
I'm converting it to a single plenum configuration per the mocked-up "balance box" below. If it works, just for intertest I'll A-B it with the crossover passage plugged. If it doesn't, there are dozens of fallback single plane candidates and there's always a market for scrap aluminum
X-Ram II 002.JPG
X Ram Mods 004.JPG
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Felix, qui potuit rerum cognscere causas.
Happy is he who can discover the cause of things.
