Ok, that pic def helps. Here's my thoughts...
The first issue is tubing. How thick is the roll bar tubing on the spec racer? To be NHRA legal to 10.00 you need a minimun of a 5 point roll bar (the pass side is not actually required), and it has to be 1 3/4 tubing. If it's smaller (1 1/2, 1 5/8) it's NOT legal.
Now back to the design. As mentioned, you just need a 5 point to be legal to 10.00. Nobody does just a 5, so we'll just say a 6 point. The side bars must pass the driver between the shoulder and elbow. Now many cars don't exactly pass there, it's up to the tech inspector to make a decision. Basically the idea of the side bar is will it keep you in the car if the door opens during a crash. The main hoop technicially needs to be at least 3 inches above the drivers head, but in reality most cars with roofs don't allow that. On the main hoop, the tech guy just wants to see that the hoop is higher then the helmet with the driver in seating position. The rear bars kind of concern me a bit, where they attach to the main hoop. You can go down 6 inches from the top, and it's hard to tell from the pic how far down it is. As for how the bar is attached to the frame, there really should be no issues there, since the bar is directly attached to the frame at every point.
My suggestion is this.. Make sure the main hoop is higher then your head when you sit in the car. Lower the seat if you have to. Make sure the side bars look like the will keep you in the car. Since this car has no roof (or any structural body for that matter), the tech inspector is going to pay special attention to this roll bar. It's the only thing protecting you if you flip. I also strongly suggest bringing the picture with you that Larry posted above. If the tech guy has any doubts or can't see how the bar is attached, that will show him that the roll bar is part of the frame assy.
Now keep in mind, that everything I've said is for full bodied cars and unibody cars. The FFR is neither of them. It technically falls into the roadster/altered catagory, so if you get a tech guy that REALLY is by the book, forget about passing tech. To be truely 100% legal, this kind of car need an NHRA roadster cage.
As for the rest of the car being NHRA legal, that's up to you.
[ July 19, 2004, 02:32 PM: Message edited by: Power Surge ]