I'm actually in complete agreement. It looks really sharp. I was just trying to picture it in my truck (an AD). I don't think firewall is an issue, but steering column and/or fender brace might be. I'm not as familiar with the clearance issues in a task force or 60s truck.
Without extensive modification by block (a 235) wouldn't have the full flow piece of that system anyway. Speaking of which, will the Frantz work with the "standard" bypass plumbing of a 216/235? As in, would it get the appropriate amount of flow?