Hey for a long time after I was injured I had a turbo Dodge and it was terrible to work on. I could hardly reach anything from the chair. I often wonder if I'd ever be able to do much on cars again. But I thought I'd let any other para hot rodders out there that the C4 gen Corvette works pretty well! I have an '88 and look what I did without getting out of the chair:

That's just from reaching over. I have in the past had to sit on the tire but that's actually pretty comfy. Throw a pad down and put your feet on the chair. I'm changing out the stock heads for better flowing units.