Ok Pantera,
I'll take a stab at this even though Corvettes are not my specialty and I haven't seen a current photo of your car. I've been a member of SVRA and HSR since 1989 however not very active as I should be. There's several vintage race clubs coast to coast and car eligibility does vary. If the car raced before 1973 and your paperwork's in order, it should be eligible for SVRA Group 6 (this is where redvetracr can be of help). Now HSR is a bit more loose and will probably allow the flares and dry sump. The tougher West Coast clubs will tend to require the cars to be "year of manufacture spec". So being a 69 model no dry sump because as I recall that came into play about 1971-72ish time period. No flares and watch wheel width and engine size. Basically as the car raced or would have raced in the year 1969. So if the car raced pre-1973 and you want to run with most all clubs it would need to be prepared as raced in 1969. I've had replace all four corners of my 1966 car due to this rule (thank you Steve Earle-General Racing LTD!). If it's more wild than 69 spec perhaps look into HSR. Links to their sites~~>
www.svra.com www.hsrrace.com