So glad to see this topic and all of the responses and opinions. I am in the planning stage of having my 351 Windsor rebuilt. All I will be giving the machinist is the block and the crank. Everything else will be new. He will be building the engine as well. He is a very well respected machinist and performance engine builder. I will be wanting a street friendly sunny day cruiser type of engine. When I asked his opinion about EFI his opinion was to stick with a carb. His response was EFI packages are "cheap because their cheap". Just one opinion of course. I know some guys swear by their EFI and seems like some guys swear at them. So please keep the opinions coming so I can make an informed decision!