Need them carb guys and opinions

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39F

G-Body Guru
Sep 9, 2019
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Ok, is this a street car or strip use?
Mostly street car goes to track here and there ,ran the car last night to get the Jetting right got the plugs looking great they we're really rich in front and lil rich in back and ended up with 77s in front with 7.5 power valve ,90s in back with a block off plugs look pretty even very very light brown color car feels pretty dam good ,still don't hook worth a **** tho
 

565bbchevy

Geezer
Aug 8, 2011
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Mostly street car goes to track here and there ,ran the car last night to get the Jetting right got the plugs looking great they we're really rich in front and lil rich in back and ended up with 77s in front with 7.5 power valve ,90s in back with a block off plugs look pretty even very very light brown color car feels pretty dam good ,still don't hook worth a **** tho
Sounds like the upgraded carb will be worth it.
 

39F

G-Body Guru
Sep 9, 2019
530
602
93
Pittsburgh PA
Sounds like the upgraded carb will be worth it.
This is still with the normal old Holley 850 cause he has been around lately but if its doing well on a 30+ year old carb should be even better with a fairly fresh carb ,can't wait to try the nitrous next
 

565bbchevy

Geezer
Aug 8, 2011
9,614
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Michigan
This is still with the normal old Holley 850 cause he has been around lately but if its doing well on a 30+ year old carb should be even better with a fairly fresh carb ,can't wait to try the nitrous next
I thought you were dialing in the new one since I figured you already did everything you could with the current set up
 
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565bbchevy

Geezer
Aug 8, 2011
9,614
12,683
113
Michigan
Just picked up the HP carb has all 4 butterflys drilled not real happy about that
So did your buddy drill those?
 

565bbchevy

Geezer
Aug 8, 2011
9,614
12,683
113
Michigan
  • Agree
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