Yes, IMO. I do t see the street master as a plus and the
RPM-AG may be OK. I don’t see the reason for it with its design for the larger engines, and the larger ports, crashing air and fuel into the smaller head port window of a 302 head.
I’m just using what available to me and my local junkyard but I do believe you’re right about the ignition system. My goal is a high torque at low rpm and that why I went with the 302 heads and the street master or rpm intake.