BILLOWING Smoke

[chococrazy]

After finally bleeding the gas tank, oil, and checking calipers (still waiting on parts) I filled the 911 with 93 octane gas and start it. It's BILLOWING white smoke from the exhaust I work at a mechanic shop so I'm use to smoke coming from the exhaust after a car has been sitting but this is different. Lots of smoke it also smells like gas (the smoke) and water/gas was dribbling from the exhaust.
Anything that would cause this? Thinking broken gaskets.

[Brorag]

coming out of storage?
recent buy?
oil level?

[chococrazy]

Sitting for a few years, one owner, problem with alarm, to busy to fix, and it sat for a few years. Doing restoration. Problem is narrowed down to exhaust unlatched the heat exchanger and the exhaust wasn't breathing well, its clogged somewhere. About to drop the exhaust any "while I'm there" things to check?
EDIT: Thinking the gas is from when I hot wired the dme relay to check the fuel pump maybe it overfilled?

[Bobboloo]

Probably oil in the heat exchangers from sitting so long. If you take them off you risk breaking a head stud. You might just run it until you burn the oil out.

Did you remove the the air filter and check for oil in the intake? If not do so and if you find oil then you are probably overfilled with oil.

Fuel smell is probably a fouled plug(s) not firing.

[chococrazy]

Air filter was clean I removed the exhaust (whole assembly after the cat but left the heat exchanger) and it as terribly dirty had a lot of gunk in it, but strangely the cat was clean. We removed the muffler and ran for a little without and realized that there was no smoke so first step is to clean this and we'll move from there.

[Joe Bob]

Let it run until the thermostat opens. 194F and half way up on the oil temp gauge. Check oil for gas.......you can see it on the dip stick and/or smell it. Change oil and filter if there is gas in the oil.

If not, the running will have burnt the oil in the exhaust out by then.

Oil level should be below the 1/2 mark on the dip stick. Any more and you will suck more oil into the intake on sport turns and steep driveways....trust me.....

[Brorag]

get it running best you can and take it out for 1-2 hours -- get to temp and blow the crud out.

[DRACO A5OG]

What color is the smoke, Blue or Light Grey?

[chococrazy]

Light grey/white.

[DRACO A5OG]

Oh good, Like others have stated, run her some where remote and get her hot to burn off any and all moisture in the gas lines and out the intake.

I usually see that colored smoke when I do an Italian Tune Up

[Jared at Pelican Parts]

If the car has been sitting for a long time, I wouldnt worry about it too much. Due to the design of the engine, it's normal for some oil to leak past the rings and into the combustion chambers.

My old 911SC would blow smoke if I had let it sit for over a month and that engine was in perfect shape.

[chococrazy]

Alright I took the muffler off and ran it straight from the cat (I put a flexpipe to direct smoke) and it once it started come very light (smoke) I put the cleaned muffler back on and let it ran for an hour- no smoke! Now I just have to clear up some major problems I had with pelican on my first, most important, order....

[DRACO A5OG]

Outstanding!