It is possible but can get very complicated. I was going to build a efi hybrid with marlin but it was going to be more work then i wanted to do. There's lots of detials you do have to drill and tap the head so that the efi will bolt on. If this is something you really want talk to marlin, he built my 88 efi and its bad ass!!!
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I like that ride, can you show some more pic's. I've seen a hybrid 22r, 20r efi motor that was turbocharged, it had a custom intake built by force fuel injection. I pretty sure there is a web site, and I'll try to find it.
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