I have a 350 hp 327 copy cam in my truck and that's definitely not an EFI cam. It wasn't as easy to use with the original 1983 Camaro ecm but the 7427 was easy to tune. I wonder if the EFI friendly qualities that were developed in the '80s when no one had access to tuning are still being applied to some of the cams.

Crane makes a couple of low rpm peak cams as well. 114102 is 500 to 4000 rpm while 113971 is 800 - 4600 rpm. I've used the 114102 with excellent results under a carb in a 350 with swirl port heads. The truck had 2.73 axles and a manual trans. The combination was very strong on the highway.
http://www.cranecams.com/uploads/cat...%20Catalog.pdf