Need Cam Timing Help

I've got a 440 with eddy heads compression is around 9.5. The cam is currently installed at 102. Its a lunati 255-259 duration solid lifter with .550 lift. Would it help et to retard it to 106. Car weighs 3300 lbs and has a 5000 converter 3.91 gears and 28" tires. Thanks

put it where lunati tells you to. that cam seems a bit on the big side for your compression ratio. what's the lda?

My vote would be leave it right were it is.