looking good. Im just finished putting a TBI setup on my 54 235. I used a TBI unit off of a 4.3L V6 and a 3.1L V6 TBI computer out of a chevy lumina van (4.3 computer seemed a bit much). So far so good. Nice thing about the 3.1 computer over the 4.3 is that it has a output trigger for a cooling fan relay.
If I hadn't already had the Clifford 2/4bbl intake I probably would have tried a dual setup like yours, but still used stock injector units. I came across this link will doing some research.
http://www.championparts.com/tbi_applications.pdfIt would certainly be awesome to see more people bringing these inlines into the new age.
Also, I read and had a few people tell me that the MAP sensor should be mounted so the vacuum port is facing down, like it is stock. I didn't think it would matter but to play it safe I remounted anyways.
So what all sensors are you using and what are you going to have done to the ecm?