Profile: Pro-formance Unlimited Inc. specializes in custom building turn-key performance crate engine. Our product line includes Chevy performance engines, Corvette performance engines, Ford performance engines, fuel injected Ford engines, Mustang performance engines and truck engines. We offer custom built EFI performance engines. Our EFI performance engine application can be installed for use in various rebuild or restoration projects such as the fuel injected muscle car engine, stack fuel injected engines and Mustang engines. Our super street performance engines are used for both street and strip applications.