There is only one way to find out for sure. Many Street Stock racing classes limit the ignition to stock-style replacement parts. For most Chevrolet and Ford engines, this means an HEI distributor is ...
"Jacobs Ignitions produce more dyno power, torque and street mpg than we ever tested before. " In all my years of dyno testing engines, it's not often I'm surprised by a product that noticeably ...
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