And in my RV7A, I had it mounted between the electric and mechanical fuel pump which is suppose to be a NO and I had a great and consistent result.
My current RV has it mounted in the standard location for a 14 and also have a great and consistent result. Of course the accuracy is within 0.2, 0.3g but I never fill the tank to the neck to have an exact fill up.
N825SM RV7A - IO360M1B - SOLD
N825MS RV14A - IO390 - SOLD
N258SM RV14A - IO390EXP119 - Out of Paint shop & flying