83 Coupe poor running after start

[George Selby]

When you first start-up the car cold, it fires right up, but takes a minute 
to produce any power (If you give any throttle, it sputters.)  After you 
get going it does have normal power.  When you stop and restart a short 
time later, it takes longer to start than a cold start.  Also it has little 
power, and sputters and bucks.  It takes a block or so to clear out and 
start accelerating normally.

A week ago it wouldn't start at all.  I examined the rotor and cap, and the 
rotor was actually fried, and the cap was in horrible condition.  I 
replaced both.  I have previously replaced the spark plugs, and played with 
the timing a bit (adjusted for max power before pinging, then backed off a 
couple of degrees.)  It has exhibited the same conditions before the after 
all the above mods (did the plugs first, then the timing, then the cap and 
rotor.)

George Selby
70 F-100 Ranger XLT 400 C6
78 F-150 4x4 400 4 spd
83 Audi Coupe GT
86 Nissan 300ZX
92 Subaru Legacy Wagon AWD
gselby4x4 at earthlink.net