Let me strongly suggest you purchase an NHRA or IHRA rule book ($10) and build the chassis in conformance to it. This will insure that it will be a safe ride, be generally accepted at any drag strip in the country and enhance it's future resale value. Also let me suggest that if you don't plan to run quicker than 9.99 seconds (8.99 seconds in IHRA) that you DO NOT go through the formal chassis inspection certification process. This will save you $70 every three years because once the chassis is certified it has to be re-inspected every three years regardless of how fast you are running, if you compete at those sanctioned tracks. Good luck - post photos!.