CJ-7's stock Tachometer with Edelbrock EFI - wrong reading

[pablorg]

Hi,

I can't seem to get my stock tach on my CJ-7 to work correctly...

I have a Jeep CJ-7 with an AMC 360 and Edelbrock EFI. The tach won't go up 3200 RPMs... I have checked the RPMs of the tach with the calibration module display, and the reading is consistent up to 3000+ RPMs. After this point, the RPMs on the calibration module have gone up till 4500+ RPMs while the stock tack reads only about 3200 RPMs...

Anyone have any clue on what's going on?

Thanks a lot for any help.

[jeepsr4ever]

I dont knwo if you can get a good answer here. I would call Edelbrocks support line.