I have the msd blaster TFI coil I like it I have had it for 3yrs and it still is in great cond. I got when I got my 6al and I have never noticed any humming but then again I never listened to it ( sorry for spelling I suck at spelling)
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RUN IT STAIGHT AND RUN IT HARD
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Novi 2000
60' 1.46
1/4 10.67
mph 126.5
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