Which box are you guys using?
I'm thinking of adding an ignition box.
I've used the MSD 6AL before but also thinking of getting the HKS TWIN POWER.

 

Do you need it because of ignition breakup at higher RPMs? If you are not having a breakup problem, then keep it simple and don't add anything. If you are having breakup, I think most would recommend the HKS Twin Power because of the results that have been achieved.

 

Yea...because of that I need an ignition box.
Some have had misses using an MSD but which MSD.

 

twin power has worked fine for 500+ for me.

 

Twin power works great for me on pump gas and 400+

 

twin power with FD harness. works great and no wires to cut. its plug & play.

Jeff

 

ditto

 

Twinpower and good stock coils work great and are simplest in my experiences. I don't like the MSD stuff for these cars.

 

and the twin power controls both the leading and trailing coils. so its rotary specific. what more could you want it works great , has a plug and play harness, and is rotary specific.

I think you got your answer! buy it and you won't be disappointed.

Jeff

 

HKS for the WIN.....