2 guys I talked to, one Chevy and one mopar both told me in the end they had over $10,000 into their multi port efi swap. One guy asked me how I liked my ez efi, when I told him I wasn't 100% sold on it and kind of wished I left the trouble free carb I had, he said yeah his had been a real nightmare, had way more into it than he ever imagined. No kidding I'd never expect to be up to 10 grand. That's just crazy.