You don't need an X brace in the door bars to certify to 8.50, only a down bar from main hoop to the front (aka shoulder bar) All main tubeing must be 1 5/8"X.120 min. if mild steel, or 1 1/2" if cromolly, window net also and SFI stickers on everything. Frame cars need the bars arrached to the frame, unibody cars can have the bars plated too the floor if the floors or firewall have not been altered. You can take it to a div tech guy and he wiil inspect it and tell you what's good and what's not. He will charge a fee somewhere between $175.00 and $250.00, if it fails you don't lose the fee, you just fix what's wrong and bring it back, he will then certify. You cannot make lic. passes in and uncertified car, so that's the first order of business. Our tech guy is only 40 miles away but the nearest NHRA track is over 200 miles away. If you need i can scan the rule book on the bars and send them too you via a PM.
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