Which ignition?

[crtims]

I need a new Ignition which one of these is better?

http://store.summitracing.com/partd...1&part=MSD-8228&N=700+400122+115&autoview=sku
Or
http://store.summitracing.com/partd...908279+4294925143+4294840046+115&autoview=sku