So, i'm looking at using a 267ci sbc for an RX-7 swap, but the HEI distributor that it came with won't fit. My only option is to use an "old-school" points distributor, but put an aftermarket module in it. I've been looking at the Crane XR-i and the XR-700. Can anyone give me the lowdown on them? How about the differences, like if the XR-700 is a multi-spark unit?