New Floscan Gallons per hour test

[PackRat]

I have a 24' Topaz with a 350 (250 hp) Mercruiser and have looked at installing the digital tach/ flometer combo unit as gauge panel space is limited and this would drop in existing hole.

While digging thru installation details looks like an extra part might be needed - pulsation damper - for mechanical fuel pumps. Did you have to install this? Any issues?
Don't have any feel for how big the damper is and have not pursued it any further.

Thanks for any info you can provide.