I have a 1991 290 enticer. I want to add a fuel flow meter to see what I am burning per hour.

I really don't need to see what each motor is burning and wanted to know if I can hook up a single engine gauge only. question is does the fuel line between the tank and fuel pump run one line out and then feed each motor or is there two seperate lines running from the tank to feed each motor.

any help would be great like:
is this possible
where is the best access to the fuel lines
etc

Thanks.

2 lines coming out of the tank,1 for each engine,remove the access cover on the cockpit floor thats between the 2 bolster seats and you can see them,you also have a access cover under your rear bench seat so you can get to the fuel level sender.

Thanks for the help much appreciated.
Any idea on the size of line?
Did you do this to your boat? If so any help on a nice looking guage setup at an affordable price?

I think its a 3/8 fuel line.