I would steer clear of some obscure little boutique company like Edelbrock that is jumping into EFI now that FiTech has perfected it and demonstrated there is a huge market for it..
all FiTech did was make it cheaper. the market has been there for years but the price was high. they put it on the market thats a lot more affordable is all they did and it worked for them.. from reading their forum its far from perfected.
