For good low RPM response I’d rather have a puny turbo than the jackson setup… just personal preference though. A bb t-28 would be yummy.
The JR supercharger is a very poor design, not efficient at all, the manifold after the SC makes a sharp 90* bend before going into the head, and there is no intercooler, talk about high intake charge temps. That’s why they push their water injection.
Not to mention that a JRSC won’t fit in the G2…