Edelbrock makes a variety of elbows with different lengths and heights. The lowest I saw was 3.62in and 9in. long. The one in the beginning post is 4.25in high.All seem to only take an LS style throttle body. I did find a company that made elbows for an LT1 style throttle body but they were $315. It seems an Edelbrock elbow and LS1 throttle body from a salvage yard may be the inexpensive way to go. FAST also has a single plane EFI manifold for $354.