What timing would be best??

what transmission do you have auto or manual?
what stall or rpm are you lanching at?
Are you trying to tune just for the track?
Street timing and drag timing are two different things(just my opinion)
If your car is at all setup for drag (big tires over 8 inches wide , steep gears 3.91 or higher , big converter 2600 rpm stall or higher ) when you launch it you are already above the advance recomended for the street and through the run you never drop back down below 3000 anyway so you dont need a advance if you have a msd dist. just lock the timing. sounds to me like you need 28-32 degrees Many people will disagree but just try it once it will cost you nothing. next time you go to the track start by setting it at 26 degrees and run it and advance it until it misses or pings dont forget to change jets in you carb other wise you are setting the timing to how your jetted just try it at 26-28 degrees with how its jetted now you will notice a difference at idle it will be alot crisper I didnt believe it until I tried it many different things work for many different people someone else said they run advance up to 50 degrees hey if it works for him but you never know what works for you untill you try it good luck