Maybe if EFI was less reliable, and required regular maintenance, people would finally get enough experience working on it, that it would become accepted. Fortunately until then, we will always have the carburetor to fill that void.

Seriously though, does the car just have a miss under load, or is it a sputter? Vacuum leak symptoms are most noticeable at idle, and gradually go away with more load (usually). Additionally, speed density cars are less vulnerable to vacuum leak symptoms. Things that get worse with load are usually ignition related. Swapping in a friends coil is a simple test. If a coil is not readily available, you can try reducing your spark plug gap (maybe ~.025) to see if that influences the problem.

Also, take a lesson from 95cobrasvt. Make sure your plug wires are sequenced correctly. Not even a carburetor will fix that.

Brian
EFI-Unlimited