Inline 6 guys, EFI on my '72 250?

[TP from Cntl PA]

Was wondering if anyone here has put on some of the new EFI offerings for the 250's and 292's on their inline? I've been asking around and only really got good info from Larry@Clifford Preformance. Was curious as to the daily driveability of them. I am looking at a Howell EFI kit from Clifford to replace my 1404 500 CFM edelbrock with manual choke. The Carb on their intake works great, but since I use my truck often in the dead cold of winter a nice consistant idle without fussing with the choke would be really nice, along with a MPG gain, although I do really well with my carb I think. I need to make a decision soon as I have a leaky header on my 250 so I'll have it apart to fix that, and would bolt on the EFI then if I am going to do it.