Review on ๐ฅ Enhance Your Twin Cam's Performance with Thunder Heart Stand-Alone Ignition System EA5012 by Chris Edgerton
Works well, cheaper than analogues. But don't trust the rev limiter.
I ran it on my 99 TC, hit 95 ci, cams and brain work. This made my engine rev up if I missed a gear and it caused the spring retainer to break in half. The result was a bent valve, chunks ripped out of both heads and pistons. 900 โฌ repair and everything is fine again. Now I do my own ignition curve and cut off all the sparks around 6200 rpm. I love that I can extend the 1* rear cylinder and make my own curve. For the price I'm satisfied. I even put a TH controller in my brother's 08 Electra 103 build with wideband O2 sensors.
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