[Tigers] Barely running - suddenly - input pls?

[CoolVT at aol.com]

After finding black flakes before, my guess is that  you have more and are 
due for a tank cleaning/coating.
My car was apparently shedding large flakes. It might  run fine for 3 or 4 
weeks and then run crappy.  It was apparently a large  flake blocking the 
inlet to the line. Would be there and float away later. Redid  the tanks and 
problem solved.
mark
 
 
In a message dated 8/6/2010 8:02:06 P.M. Eastern Daylight Time,  
gpointer at telusplanet.net writes:

Ran fine  last outing.
Now it will start, but barely runs; very rough. Unable to  increase rpm at
all.
All comes to an end in <15 seconds, often with a  backfire.

Hint: Last time out, it got very hot. Got caught in road  construction a 
mile
away. Approx 220F+ when I parked it. I suppose the fuel  likely boiled in 
the
bowls. Do not have a spacer or heat shield. Ran the  electric fan, with hood
up, for 20 min after parking. I didn't check to see  how hot the temp crept 
up
after I parked it.

What I have done or  checked today:
-The fuel pump was real slow to pressure up this year, so  replaced that 
with a
new one from SS. Pumps up fine now.
-Replaced the  fuel filter and blew out the fuel line while the pump was 
out.
-There were  many black flakes in old pump. I suppose this is tank coating. 
I
presume  the inline fuel filter trapped any of this prior to reaching the 
carb.
Took  the (paper type) filter apart and there was a bit of the stuff.

After  the above work was completed, identical result. Squeezed the 
throttle,
with  the engine off, and the carb appears to be delivering plenty of fuel.
Holly  1850, rebuilt 1000 miles ago. Engine = internally stock 302. 
Mods=Offy
360  manifold; Mallory dual point ignition; Accel Super Stock coil.

I need  the car for an event tomorrow. What am I dealing with here??

Thank  you,

Gary  Pointer
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