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Need a quick ballpark figure.

  • Thread starter Thread starter 69Rcode_Mach1
  • Start date Start date May 17, 2006

69Rcode_Mach1

Active Member
Apr 20, 2004
1,473
1
37
Salt Lake City, Utah
May 17, 2006
#1
  • May 17, 2006
  • #1
Hey guys I have a holley strip kit, and I need to figure out what sort of jetting would put me in the area I need to be. I have 81p/89s right now but that is not from the factory, I changed them when I was testing some stuff. The problem is I stripped out a plug hole so am fixing that tomorrow, and hoping to get it on the freeway to finish the break in. So it has to be a decent tune can't be lean or super rich. Any kind of suggestions on what sort of jetting I should run. Idle I can figure out, but I don't want anymore fouled plugs. I am at 4200ft elevation which may affect your figures, but please guys I need this. Check my sig for the combo.
 

thehueypilot

Active Member
Feb 25, 2004
1,084
0
37
Medina,Tennessee
May 17, 2006
#2
  • May 17, 2006
  • #2
I have a similar set up and I run 76 pri and 84 sec which give me 12:1 in the 1/8 mile as recorded by a wide band air/fuel meter. My elevation is only 400 ft but read your plugs and adjust accordingly.
 
G

gsxrken

Member
Sep 12, 2005
206
1
18
Weschester County, NY
May 17, 2006
#3
  • May 17, 2006
  • #3
IIRC, I run 72s and 82s in a 750 4150. And that's in a stroker 408.
 
T

ttoney

Member
Sep 12, 2005
195
0
16
Denver
May 17, 2006
#4
  • May 17, 2006
  • #4
75p 80s @ 5280' Denver. The carb is the Holley street avenger 770 on the .30 over 351c.
 

69Rcode_Mach1

Active Member
Apr 20, 2004
1,473
1
37
Salt Lake City, Utah
May 18, 2006
#5
  • May 18, 2006
  • #5
I will give 72p/80s a try and see where to go from there. Thanks guys.
 
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