I can remember seeing this in the theater back in 76, it was double billed with some car chase movie I can barely recall. The only scene I clearly remember from the car movie is a guy is going to jump a missing section of highway overpass and a guitar neck is stuck under the gas pedal so he doesnt make it.(any help with the title of that would be appreciated.)
Inframan on the other hand I enjoyed a whole lot and even have the DVD. Looks like that will get a rewatch very soon.