Yeah, 8 stack Hilborn/Crower and Enderle "hat" injection were very common in the 50's and 60's. Of course sprint cars have used Hilborn mechanical injection for 40 years or more. However, that kind of fuel injection is designed to operate at wide open throttle (WOT) and was rather temperamental and glitchy for street use. So, relatively recently they started converting Hilborn mechanical units to electronic. And more currently companies like Hilborn, Inglese, Kinsler, Imagine, and Force EFI have started to actually make/manufacture Hilborn style 8 stack electronic fuel injection for use on the street. They have proven to be quite reliable and efficient, just like factory EFI on passenger cars. Many are self learning and require no laptop tuning. The main drawback of these systems is cost. They range from about $5000 to as much as $11000.


Tom