This is my setup: 85 Corvette with a 4+3 trans. Old AFR 195 heads, Lunati VooDoo 60102 flat cam 219/227 @.050 468/.489 lift 112 lobe sep. Professional Products single plane intake with custom intake elbow, Bosch 24 lbs Design III injectors, TPIS headers, wideband O2, converted to a 165 ECM with 32B bin (I want my 4+3 to be controlled by the ECM that’s why I am using the 32B).

I have my part throttle BLM’s @ 128 +/- 2. I have my WOT looking good too @12.5-13.0 A/F ratio.

The issue I am having is the when I start from a stand still and accelerate kind of medium. If I start very easy it’s fine. If I start hard but not WOT (TPS %40) it’s fine.
It feels like it’s running rough then when I get to around 2.5k it clears up and feels good.

Here are some of my tables.

Spark Advance Vs. RPM Vs. Load

RPM Load Value (LV8)
---- 32 - 48 - 64 - 80 - 96 - 112 128 144 160 176 192 208
400 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 14.1 9.5 9.5
600 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 20.0 12.0 8.1 8.1
800 20.0 26.0 26.0 26.0 26.0 26.0 26.0 26.0 26.0 14.1 9.1 9.1
1000 20.0 32.0 32.0 35.9 35.9 35.9 34.5 34.5 34.5 20.0 12.0 12.0
1200 23.9 32.0 34.1 40.1 38.7 38.0 35.9 35.9 35.9 25.0 16.9 16.9
1400 25.0 34.1 34.1 41.1 40.4 39.0 37.3 37.3 37.3 27.8 20.0 20.0
1600 29.9 35.9 35.9 43.9 41.8 39.4 38.7 38.7 38.7 30.2 23.9 22.1
1800 32.0 38.0 38.0 46.1 41.8 40.1 39.0 39.0 39.0 34.1 28.8 22.9
2000 35.2 40.1 40.1 46.1 46.1 41.8 40.1 40.1 40.1 35.9 30.9 23.9
2200 40.1 40.1 40.1 48.2 47.1 43.9 41.8 41.8 41.8 35.9 30.9 24.6
2400 40.1 40.1 40.1 48.2 46.1 43.9 42.5 42.5 42.5 35.9 32.0 25.3
2800 40.1 40.1 40.1 48.2 46.1 43.9 41.8 41.8 41.8 35.9 32.3 27.1
3200 40.1 40.1 40.1 47.1 45.0 42.9 41.8 41.8 41.8 35.9 32.0 27.1
3600 40.1 40.1 40.1 48.2 46.1 43.9 41.8 41.8 41.8 35.2 32.0 27.1
4000 40.1 40.1 40.1 48.2 48.2 45.0 43.9 43.9 43.9 35.5 32.0 27.1
4400 40.1 40.1 40.1 48.2 48.2 45.0 43.9 43.9 43.9 36.2 33.0 28.1
4800 40.1 40.1 40.1 48.2 48.2 48.2 47.1 47.1 47.1 35.9 35.9 28.1

Accel. Enrich %BPW Factor Vs Async Pulse

Pulse # Factor
1 0.547
2 0.547
3 0.547
4 0.547
5 0.547
6 0.516
7 0.516
8 0.516


No. of Accel Enrich Async Pulses Vs. Coolant Temp.

Deg. C # Pulses
-40 12
-16 12
8 12
32 12
56 12
80 12
104 12
128 12
152 12


Accel. Enrich. Async Factor Vs. Coolant Temp.

Deg. C Factor
-40 1.000
-16 1.000
8 1.000
32 1.000
56 1.000
80 1.000
104 1.000
128 1.000
152 1.000


LV8 Accel. Enrich. Factor Vs. Delta LV8

LV8 Counts Multiplier
0 0.141
64 0.180
128 0.203
192 0.250
256 0.305


LV8 Accel Enrich Coolant Factor Vs. Coolant Temp.

Deg. C Multiplier
-40 0.430
-16 0.430
8 0.430
32 0.398
56 0.375
80 0.352
104 0.320
128 0.305
152 0.305


LV8 Accel. Enrich. Decay Rate Vs. Coolant Temp.

Deg. C % Change/Inj.
-40 25.0
-16 25.0
8 17.2
32 17.2
56 25.0
80 25.0
104 25.0
128 25.0
152 25.0


Any ideas?

 

Back off on the number of pulses.

 

I tried this but no real change. (I have Base P.W. Calc Method turned off)

Deg. C # Pulses
-40 12
-16 12
8 12
32 12
56 12
80 6
104 6
128 6
152 6

BTW the car runs great when it's warming up. What do you think of my spark table?