The last new vehicle sold in North America with a carburetor was the 1994 Isuzu pickup....27 years ago. Even then, pretty much every carline since 1990/1 was fuel injected.
Sure there were techs that could do it then. The "expert" guys from that era have mostly retired by now. Shop around the corner wants nothing to do with anything over about 10-15 years old. They passed on insatalling a Blueprint 350 in my employer's Chevelle that already had a 350 in it.
You should be looking for a specialty/performance shop, I think it's going to be tough to find a "regular" mechanical shop to even want to talk about it.
Operating a repair shop, whether mechanical or body, is an incredibly expensive proposition, largely dependent upon cycle time. A decent tech will be looking to turn 80-120 billable hours a week, tough to do on a hobby car. This is also the reason most body shops won't touch old stuff, few people want to pay the labor it takes to keep it moving along.
