Listen guys. It's like this. Both the meter and electronics effect fuel delivery per any injector size you put on the engine. It isnt the injector "size" that depicts the amt. of fuel being delivered, the number (ex. 36lb) is just the amt. of fuel the injector is capable of flowing. It is the amount of air which passes through the MAF "sampling tube",(via the sampling tube is part of the calibration) by way of cool are passing over the 2 wire "hot" and "cold" sensors, in-turn providing a specific voltage to the EEC which then decides the injector width (the amt. of fuel provided for the voltage reading of the amt. of air entering the MAF). The cooler the air, which would explain larger sampling tubes because the air is read as being more cool the more that enters the tube, the less resistence the signal wires on the MAF sensor have, therefore providing more voltage for a larger injector width. There are many charts to follow, which will give you a voltage reading in coordance with the amt. of fuel that will be delivered by the injector as a result of the voltage reading. In short, the MAF, injector size, MAF sensor, and EEC all work together to controll fuel delivery, but it ALL starts at the MAF. It works as a small computer before the computer. Hope this helps