Does anyone have a fuel consumption curve for a 500 MAG MPI Fever?
I just bought a used boat & the fuel sender is out of it and I want to estimate GPH till I get it fixed.

525efi is around 50gph wot guessing 35 cruise.

Thanks, I have 2 documents, one says 40 gal fuel tank & one says 206 gal tank. I don't believe either. Any idea what size tank the 27's had?

65 gallons. Not enough

Pretty sure fastech is 90 gallon and for the type of boating I do running full is way to much for day trips.

60 gal tank, you can go just over 100 miles, should average about 2 miles per gal.

It is a 65 gallon tank and that is the reason I bought a formula. If you are on it like running a poker run you will need to top it off once and hour or you will run out . If it's anything like mine the boat will starve for fuel when it is on plane before it is actually empty . At wot you can easily burn 50 gallons an hour. Jeff