wich are the best for a modified rx7 i heard fireball coil gives u more hp is that true

 

ignition will not increase horsepower..
but it can sometimes revive horsepower that is lost because of a old worn out coil.

My car had the original coils on it and I just changed them to blaster 2s. No real horsepower increase but it runs much smoother, at both Idle and accelleration.

 

I have heard that Jacobs Ignition makes some bad *** Ignition systems. You pay a price (not cheap at all!) .v I would go with a regular jabobs coil for my trailing, a pro power col on the leading. Then they make the Rotary pro pack. Its an little microprosser that senses how much spark the engine needs. Havbe heard this is an awsome upgrade ojn heavely modified engines.