Recommended timing for 454??

[g356gear]

Hey guys,
I have a fairly fresh 454 with an agressive hydraulic cam and I am looking for recommendations for timing setting on the motor. Compression is around 9.5 and will be running 91 octane. The car was restored in 89 and had about 250 break-in miles before it was stored and never really had a good performance tune. I now have the car so I need a good starting point. Thanks for the help.