49 flathead electronic ignition conversion

[Ggmac]

Is it a steady needle ? Its a bit low , check your timing . Just noticed a wire or cable crossing near the spark plug wire on the bottom right of your picture. If its metal it could be shorting ( intermittently)out the plug .

[ford38v8]

Originally Posted by Ggmac

Is it a steady needle ? Its a bit low , check your timing . Just noticed a wire or cable crossing near the spark plug wire on the bottom right of your picture. If its metal it could be shorting ( intermittently)out the plug .

Good catch. This could definitely be the problem. That looks like the temperature sender wire, which will certainly short the plugs.

[51woodie]

Campion. Did you compare your vacuum readings to the chart I posted?

[Campion2107]

Yes and thank you. I went with the gap and points based on how the vacuum acted and it straightened it right out. I am slightly embarrassed in the fact that I did not gap the plugs properly when I installed them. We will see how it runs on the street!