Tables, spark, timing, fuel, VE, maps

[bruce plecan]

The following tables are for a AL headed (vette 58cc chamber)) 355 CID SBC
cam specs 270 Comp Cam .470 lift 270 adv dur 224 @.050 110   9.5:1 CR
3.42 gears 700R4 tranny 2800 rpm stall non-lock-up
3"single ex (Walker), Edel TES manifolds very low restriction cat,
3020 lb car.
Cross fire intake 2" butterflies, .25" lid spacer 90lb/hr injectors
some details are not mentioned (gotta keep an edge)
GM 1227747 ECM (no internal mods, oem v-8 netres)
Spark
          30  35  40  45  50  55  60  65  70  75  80  85  90  95  100
  400    0    0    0    0    0  12  16  16  16  12    8    8    8    8    8
  600    0    0    0    0    0  12  16  16  16  12    8    8    8    8    8
  800   -4   -4   -4   -4   -2  12  16  16  16  12    8    6    4    4    4 
1000   -6   -6   -6   -4    0  12  12  12  11    8    6    4    4    4    4
1200   -6   -6   -6    8  10  14  14  12  11    8    6    4    4    4    4
1400   -6   -6  18  20  20  18  14  12  11    8    6    4    4    4    4
1600   -6   -6  24  24  20  18  14  12  10    8    8    8    6    6    6
1800   -6   -1  27  28  24  22  17  12  10    8    8    8    8    6    6
2000   -6   -1  30  30  26  22  16  12  12  10    8    8    8    8    6
2200   -6   -1  30  30  26  22  18  16  14  12  10   11   8    8    6
2400   -6   -1  30  30  26  22  18  16  14  12  12   12  10  10  10    
2800    0   0   26  26  26  22  22  18  18  17  16   14  14  14  14
3200    0   0   24  24  24  22  22  20  18  18  18   18  16  17  17
3600    0   0   22  22  22  22  20  20  20  18  18   18  16  16  16

Power Enrich Spark
800     0
1200   0
1600   0 
2000   1
2400   6
2800   6
3200   6
3600   6

VE vs  MAP  vs  RPM
           20  30  40  50  60  70  80  90  100
  400     0    0    0  16  16  36  41  50  54
  800     0    0    0  16  18  39  47  52  54
1200     0    0    0  29  45  50  52  57  60
1600     0    0  25  46  50  51  54  58  60
2000     0    0  51  49  51  53  57  59  62
2400     0    1  49  49  51  54  56  59  62
2800     0    2  50  52  54  55  57  60  64
3200     0    3  50  53  55  57  59  61  64

VE WOT Enable
      0  10
  400  10
  800  41
1200  40
1600  41
2000  41
2400  39
2800  37
3200  35
3600  35
4000  37 
4400  39
4800  41
5200  41
5600  31
6000  16

%TPS for WOT
      0  35
  400  27
  800  26
1200  25
1600  24
2000  23
2400  22
2800  21
3200  20

I'll just about guarantee ya this is the most different set
of tables ya'll see.  But, for my combo it's perfect and
that's  a word I don't use often.
The items to note are the lean/retard overrun areas.
You can glance at the spark table and see when the engine
wakes up.
Also note that the VEs can add up to over a 100%, that cause
the %TPS are low, and with the existing VE at the first table
allow it to go rich instantly.  Might also note "funny" timing
under 2800 rpm ish  remember 2800 rpm stall converter.
With this combo I can light em at will in 1st, and 2nd.
Ya runs 13's but you can see how mild the tune is..........
HTH  Bruce   Maybe Cone shaped hat is to lure the
                      unsuspecting
6400