My 650 Quick Fuel is somehow draining both bowls over a period of a week or less. The fuel goes down into the intake and ends up in my oil. I went to change my power valve yesterday and the front bowl was empty and I couldn't see fuel through the clear sights on the rear bowl. What could cause gas to completely drain from the bowls? The outside of the intake is dry so it's all going into the intake. The power valve has a new gasket and the power valve is new.

I had a similiar issue with my Quick Fuel 750SS. The first winter I stored it the bowls were completely empty come spring and when I went to fill them, the gaskets must have been dried up alittle cause the gas starting to leak out and puddled up on my intake. With mine though I am thinking the gas is evaporating in the bowls during storage, so this year I just keep adding gas through the vent tubes every few weeks to keep the gaskets wet.

Possibly the needle valve and/or seat. Had an old 1850 model that needed some work but once I had to knock the fuel bowls off with a hammer I figured it was too far gone to even bother with.

Here's a link to document that may be of some assistance:
http://www.vintagemusclecarparts.com.../needleandseat

It's not the bowl or metering block gaskets, it has to be something else, the fuel is draining down into the intake and consequently down into the cylinders. The outside of the intake is dry.

I spoke with Quick Fuel and they said it could be the gasket between the metering block and main body, however I really don't see how it could be that.

I replaced the meteriing block gaskets and power valve & plug gaskets and it still leaks. Has anyone ever had issues with a quick fuel having a main body or metering block being warped?

Crap in air bleeds which causes the fuel to sypon into the manifold
Very often an old school side of the road 'fix' works
remove air filter, take rpms up, hand over the top till engine almost stalls the pull you hand off, 3 or 4 times.

Failing that dismantle carb and soak/clean/ blow out all galleries.

Note a light smear of oil on gaskets makes them easy to remove later, and reusable for side of the road fixes.

I can let the car sit a week, turn the fuel pump on to fill the bowls and let it sit for a few days and it will drain down. The air bleeds will cause them to drain even if the engine hasn't been cranked in a couple of weeks??

Mines has always leaked a little bit, but i never thought it could go down the manifold and into the oil. How does it end up in the oil ? Mines only leaks a tiny bit, i see it on the manifold.

Ring gaps are larger when sitting due to no heat expansion.

My sons rx7 was doing the same thing...crap in the carbs.
Except that was rather funny
He would turn the car off after a run, jump out, walk 10 yrs or so away, Then KARRBOOOM.
The fuel would explode in the exhaust ....should hear what it sounds like in an underground car park lol

My cousin used to do that with an old full size 390ci Ford Ranger with straight pipes around the local cruise spots. Do a drive-by turning the ignition on and off and watch all the people duck.

Ok I'll give it a shot. Think an air compressor might work or would it mess something up?

Step,those rotaries always make popping sounds.We had a few that would show up at the street races back in the day.Old RX 3's with 13B mtors and nitrous.Yiinnnnnggggg Yiinnnnggggggg,POP! brump brump brump Yiinnnnnggggggg Yiinnnnggggg POP!

Yiinnnnngggggggggg POP Yiiinnngggggggggg POP CLANK BANG BOOM{sound of half breed Toyota 5 speed truck trans falling apart on 2-3 shift} Brump brump brump{sound of RX3 coasting to side of road).

I just had to go there

Thats boy racer BS sry
Note this is when he has parked the car, turned off the engine, got out of the car and walked away lol

We relate the sound of a rotary to a sewing machine lol
Thu I must say my sons does sound real nice, more like a V8 at high rpms with a deep rumble
Hes done the full resto all himself, from body work to porting over the last 2 1/2 yrs, no help from the old man either....hes only 23 yrs old and not in the trade...a telecomications rigger....sort of job mike rowe would do.
Hes been sensible too, carbed and hasnt over ported it, so it is still quite streetable, the turboed injected fully ported are absolute pigs to drive on the street.