Anyone know if you need to rejet if switching from a stock card to a HRC 030 card?

I don't know what jets I am using right now but I believe I have a stock engine with Jha pipes.

I'm not after an immediate power gain right now as I believe I will need to rejet to maximize performance. I just want to know if I use the HRC card with my current jet settings, will the HRC card blow up my engine.

I am assuming the worst that can happen is there is no change in power.

Thanks

rip