Maybe pull the carb and set it on a sheet of paper towel, refill the float bowl, and watch for wet towel.
I have also noticed over the last several years the fuel evaporated much faster than 10-20 years ago. If I let my old truck sit for a week, the float bowls are about half full of fuel if your lucky. To me this is fast evaporation. I thought it was a leak or such, did all sorts of tests, and it comes down to evaporation in my case.
One problem with pulling the carb, it won't be sitting on top of a hot engine...the heat of coarse speeding up the evaporation.
I'm all for more torque and power, but I would also say if you toss your OEM carb your also giving up the factory set up that was designed to work together. I notice the aluminum intake manifolds heat and cool quickly which does affect the drivability in cooler climates. On my old ford V8 truck, the Edel RPM intake worked great, but it was so tempermental to drive in spring/fall I ended up selling the Edy and replacing it with a OEM cast iron intake with heat crossover. I tried running it with the heat crossover blocked off, used an Edel O2 sensor to set the jetting...it ran well. But then I tried it with the crossover open like it was from the factory...I runs GREAT...the fuel is definitely atomizing better.
So depending on where you live, give it some thought.
