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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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Spark plug for 1/4 mile, head modified

  • Thread starter Thread starter Luis911
  • Start date Start date May 9, 2007

Luis911

Member
Nov 9, 2005
114
0
17
Mexico City
May 9, 2007
#1
  • May 9, 2007
  • #1
My mustang is 1988, Speed density, 5 speed.
TPS=0.985 V and RPM=1000 (Idle)
I ran 1/4 mile (alt.=7,284 ft =2.22 km)
With spark plug Motorcraft ASF 42C 0.45 Elapse Time = 18.8 sec.
With spark plug Champion BLY15 and 0.33 plg Elapsed Time =17.2 sec.

What timing I set or what do I do for best performance???
The idle=1000 rpm is ok???? I can't adjust between 750-800 rpm, I know the head are modified.

Thanks
 

Luis911

Member
Nov 9, 2005
114
0
17
Mexico City
May 14, 2007
#2
  • May 14, 2007
  • #2
any answer or opinion??????

BYeeeee
 
8

86bluecobra

Advanced Member
Dec 20, 2004
4,265
12
69
B.C. Canada
May 15, 2007
#3
  • May 15, 2007
  • #3
I would be running whatever doesn't ping. At that alt you will be running richer. You should be able to get a fair bit of timing into it.
 
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