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MSD universal BTM gives bouncy idle ???

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Mar 30, 2003 | 08:46 PM

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Car: 1991 Conv. TA

Engine: Forged 350 with D-1SC

MSD universal BTM gives bouncy idle ???

I have a MSD universal BTM installed on my 1991 TA 305 HEI system. I get a bouncing tach at idle. It seems to smooth out while driving.

I know it is not a strictly tach failure as when I hook up my Jacob's Pro Street instead of the stock coil, the tach works fine.

If anyone has experienced this please let me know.

Thanks.

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