I installed the MSD Atomic system in my car and I love it. I use an Areomotive A1000 pump which was much quieter than the Walbro I had installed with another system. With the MSD, you have to use flexible fuel line for the feed and I ran the original hard line for the return. I bought a cheap MSD knockoff distributor so the EFI could control the timing. I really like it. It doesn't have the tenability of the Holley, but for me, that is a good thing. I can't muck up the fuel tables by messing with it.
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