Help removing Harmonic Balancer ZZ502

Hello, I have a new never been run ZZ502 that I want to remove the harnonic dampener to install a Fluiddampr.

I have removed other BBC (454) with a really good puller and had no problems
but this one won't move. I put a little heat on it with a propane torch being careful not to damage the rubber ring. And still nothing!! And I don't want to break anything.

Any ideas or help would be greatly appreciated!

some come off very hard you need a very good puller and most all the so called HD ones are junk when you start pulling off the bbc dampers . i do alot of bbc and pullers do not last me very along .with any after market dammper you need to check the press and if to much i hone for the rigth press . the puller last longer if you do not use a impact on them