While I've been party to tuning some cars with fairly high stall converters, I've just recently gone to a *low* stall, 10" converter for my car.
[254mm, 2,800 stall, Yank Converter *Super Stock*]

With the higher stall converter (typically 3,500) it's always been rather easy to get the AE/PE correct, since the engine is never really *loaded down*, coming off idle, like with a stock converter. So with less load, less fuel, and timing are needed. The engine also transistions thur that range so quickly, that again, there's little load. Not to mention that there is also a big difference in what the converter will flash to, while the converter is *flashing*, that allows the motor to rev with a realitively light load..

What I hadn't expected was how dramatic of change I'd see going from a restalled stocker (ie it's about 2,600), to such a similiar stall, smaller diameter converter would be. BTW, I'd sriven a Yank converter'd car similiar to mine, but it had a 11" prototype of what was to become the Super Stock 254.

Anyway, I've been able to take some off idle fuel out. Lessen the low RPM AE, and ramp out less timing coming off idle.

FWIW, YMMV, etc., etc.....

 

While not the best or final, here's some of what I was talking about. The AE stuff is classified.

BEFORE:

LMainSa:
;------------------------
;Map: 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 ;Rpm:
68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68; 400
68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68; 600
68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68; 800
68, 68, 87, 87, 90, 96, 96, 87, 87, 87, 87, 87, 87, 87, 87; 1000
68, 99, 99, 99, 99, 99, 99, 96, 96, 96, 96, 96, 96, 96, 96; 1200
99, 99,102,109,112,112, 99, 96, 96, 96, 96, 96, 96, 96; 1400
112,112,115,118,118,118,112, 96, 96, 96, 96, 96, 96; 1600
112,112,115,118,118,118,112,106, 99, 96, 96, 96, 96; 1800
112,112,115,118,118,118,112,106,103, 99, 99, 99, 99; 2000
112,112,115,115,115,115,112,109,106,103, 99, 99, 99; 2200
112,112,112,112,112,112,112,109,106,103, 99, 99, 99; 2400
97,112,112,112,112,112,112,106,103, 99, 99, 99, 99; 2800
97,109,109,109,109,109,109,103, 99, 99, 99, 99, 99; 3200
68, 68, 77, 99, 99,106,106,106, 99, 99, 99, 99, 99, 99; 3600
68, 68, 68, 99, 99,103,103,103, 99, 99, 99, 99, 99, 99; 4000
68, 68, 68, 99, 99,103,103,103, 99, 99, 99, 99, 99, 99; 4400
68, 68, 68, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99; 4800

LMainVe:
;--------------------------------------
;Map: 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 ; RPM:
88, 92, 115, 130, 140, 140, 140, 140, 145, 150, 160 ; 400
88, 94, 115, 130, 140, 140, 140, 140, 145, 150, 160 ; 600
88, 96, 115, 130, 135, 140, 140, 140, 145, 150, 160 ; 800
92, 105, 135, 160, 180, 200, 200, 210, 210, 210, 210 ; 1000
100, 115, 135, 155, 175, 190, 200, 210, 210, 205, 200 ; 1200
105, 115, 125, 150, 160, 175, 180, 185, 190, 190, 185 ; 1400
105, 115, 120, 135, 140, 145, 160, 170, 180, 185, 180 ; 1600
105, 115, 120, 135, 140, 145, 160, 170, 175, 175, 180 ; 1800
105, 115, 120, 135, 140, 145, 155, 165, 170, 175, 180 ; 2000
105, 115, 120, 135, 140, 145, 155, 165, 170, 170, 175 ; 2200
105, 115, 120, 135, 140, 145, 155, 165, 170, 170, 175 ; 2400
105, 105, 110, 130, 135, 140, 150, 160, 170, 170, 175 ; 2800
95, 95, 105, 125, 125, 140, 150, 160, 170, 170, 175 ; 3200
95, 95, 100, 115, 120, 135, 150, 160, 165, 170, 175 ; 3600
90, 95, 100, 110, 120, 135, 145, 155, 160, 165, 170 ; 4000
90, 90, 100, 110, 115, 135, 145, 155, 160, 165, 170 ; 4400
90, 90, 100, 110, 115, 135, 145, 155, 160, 165, 170 ; 4800

AFTER:

LMainSa:
;------------------------
;Map: 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 ;Rpm:
68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68; 400
68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68; 600
68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68; 800
68, 68, 93, 93, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96; 1000
99,105,105,105,105,108,108,108,108,108,108,108,108; 1200
99,105,112,115,115,115,115,115,112,112,112,112,112; 1400
12,112,115,118,118,118,115,115,112,112,112,112,112; 1600
12,112,115,118,118,118,115,112,112,112,112,112,112; 1800
12,112,115,118,118,118,115,112,112,109,109,109,109; 2000
12,112,115,118,118,118,115,112,112,109,109,109,109; 2200
12,112,112,115,115,115,115,112,112,109,109,105,105; 2400
97,112,112,112,112,112,112,112,109,109,109,102,102; 2800
97,109,109,109,109,109,109,109,109,109,109,102,102; 3200
68, 77, 99, 99,106,106,106,102,102,102,102,102,102; 3600
68, 68, 99, 99,102,102,102,102,102,102,102,102, 99; 4000
68, 68, 99, 99,102,102,102,102,102,102,102,102, 99; 4400
68, 68, 68, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99; 4800

LMainVe:
;--------------------------------------
;Map: 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 ; RPM:
80, 85, 92, 115, 130, 140, 140, 140, 140, 145, 150, 160 ; 400
80, 85, 94, 115, 130, 140, 140, 140, 140, 145, 150, 160 ; 600
80, 85, 96, 115, 130, 135, 140, 140, 140, 145, 150, 160 ; 800
86, 92, 105, 135, 160, 180, 200, 200, 200, 200, 200, 200 ; 1000
95, 100, 115, 135, 155, 175, 190, 200, 210, 210, 205, 200 ; 1200
95, 105, 115, 125, 150, 160, 175, 180, 185, 190, 190, 185 ; 1400
95, 105, 115, 120, 135, 140, 145, 160, 170, 180, 185, 180 ; 1600
95, 105, 115, 120, 135, 140, 145, 160, 170, 175, 175, 180 ; 1800
95, 105, 115, 120, 135, 140, 145, 160, 165, 170, 175, 180 ; 2000
90, 105, 115, 120, 135, 140, 145, 160, 165, 170, 175, 175 ; 2200
70, 105, 115, 120, 135, 140, 145, 160, 165, 170, 175, 175 ; 2400
70, 95, 105, 110, 130, 135, 145, 160, 165, 170, 175, 175 ; 2800
70, 95, 95, 115, 130, 135, 145, 160, 165, 170, 175, 175 ; 3200
70, 95, 95, 110, 125, 130, 145, 160, 165, 170, 175, 175 ; 3600
70, 90, 95, 110, 120, 130, 145, 155, 160, 165, 170, 170 ; 4000
70, 90, 90, 110, 120, 115, 145, 155, 160, 165, 170, 170 ; 4400
70, 90, 90, 110, 120, 115, 145, 155, 160, 165, 170, 170 ; 4800