When choosing to upgrade your engine to modern fuel injection, look no further than Edelbrock's Pro-Flo 4 EFI systems. Edelbrock has been delivering the best combination of dyno proven electronic fuel injection performance for over 40 years. Pro-Flo 4 is not just a replacement for your carburetor, it's a complete engineered system that provides the ultimate in performance, drivability and quality. These easy to use, self-learning EFI systems feature an all new ECU pre-loaded with 80 dyno-tuned calibrations that support popular engine configurations up to 800 hp. Combined with the enhanced E-Tuner 4 App's easy to use setup wizard; you get plug and play performance without the need of a laptop or costly dyno tuning sessions. Pro-Flo 4 EFI systems are the most complete systems available on the market, giving you what you need to upgrade to powerful and efficient fuel injection for your vehicle. Pro-Flo 4 EFI systems are the best value for your dollar! ** INSTALLATION NOTE: These systems will require a high pressure EFI compatible fuel delivery system. Fuel delivery kits are available and sold separately. LS kits will require a coil harness which is sold separately. 24(x) reluctor applications will require #37-1633 and 58(x) reluctor applications will require #37-1632. #35760/#35770 manifold height: 4.58". #35780 Manifold height: 4.58". #35700/#35710 manifold height: 4.95". #35740/#35750 manifold height: 7.40". #35830/#35840 manifold height: 5.90". #35850/#35860 manifold height: 5.90". #359300 manifold height: 6.30". #335910 manifold height: 6.10". #35930/#35940 manifold height: 6.35". #35950 manifold height: 6.25". #35960 manifold height: 6.49". #35970/#35980 manifold height: 6.60". Throttle body height: 2.25"