The only issue I have with the angled seat is it will affect the location of the roll bar behind my head. If it needs to be moved it will throw the seat off.
Any insight?
First, I'm a rookie, I can tell more about what DOESN'T pass tech than what does, this just applies to a truck, and to what happened to our build.
It's tough. Like the chicken and the egg, do you make the cage match the seat, or the seat match the cage? If your cage has a roadster-style halo (funny car style), then you have be able it fit under it with couple inches AFAIK. If you are a coupe without a halo, it's up to the inspector to indicate how much head clearance is required.
In my case I had SCTA inspectors look at the cage and seat while the truck was gutted and in the building stage and got the thumbs up (it was correctly done per book). The guy who did our cage was an expert at LSR cages, and has done several coupes. We ran twice as much protection as was required. I ran Bville and AOK for the cage and seat. Later I was told I needed more headroom. That changes the shoulder bar, the hip mounts, the floor mounts, the levers, etc, etc.
When I go to build another, I will do the halo. I got it hunch it will be forced on all the coupes eventually anyhow. Nobody is going to question a well done halo. But if I didn't have the time or money for a halo, I'd mount the seat as low as is possible. It's been 30 years since I drove a Falcon (3 on the tree) and I can't remember how tall they are. I know it can be a problem with a full sized truck with an upright seat, but I also know it can work in a Vette. I can't sit in our vette with my head under the rollbar. I scrunch down when going through NHRA tech.
Disclaimer: This advice is worth what you pay for it. Not valid in Hawaii or Alaska. If you are under 6' tall, this probably doesn't even apply.
