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As I work through the final issues of the 5.0L V8 swap, I have a question about my tach.
The truck is a '93 (with factory tach). I attached a jumper wire on the back of the tack to convert it to 8 cylinder. The idle speed reads very close to correct.
The problem is, as engine speed increases, the amount the tach reads high also increases. In other words, when the engine is running at 2100 RPM, the tach reads 3000 RPM.
I am running an MSD distributor (with a working Ford TFI module - long story) and an MSD coil.
Any suggestions?
Thanks.
The truck is a '93 (with factory tach). I attached a jumper wire on the back of the tack to convert it to 8 cylinder. The idle speed reads very close to correct.
The problem is, as engine speed increases, the amount the tach reads high also increases. In other words, when the engine is running at 2100 RPM, the tach reads 3000 RPM.
I am running an MSD distributor (with a working Ford TFI module - long story) and an MSD coil.
Any suggestions?
Thanks.
