Jetting a 950

Old 02-27-2008, 04:55 PM
  #1  
contagious
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Default Jetting a 950

what would be a good starting point for 4150 style 950 carb.front and rear pv blocked.motor is 509 cid, elebrock rpm heads, 10.5 comp,5.13 rear gear,2500 lb car,run 1/8 bracket race.
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Old 02-28-2008, 12:08 AM
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cepx111
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I'd say 88's sqaure and read your plugs after a shake down run then work your way up or down depending on et's, but either way you go I'd stay square.
Your gonna want it a tad on the lean side for consistancy.
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Old 02-28-2008, 03:47 PM
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contagious
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Thanx for the reply.Where is southaven? i live in mobile,and race some at hub city and battlefield raceway.
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Old 02-29-2008, 05:23 AM
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Tod74
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Originally Posted by cepx111
I'd say 88's sqaure and read your plugs after a shake down run then work your way up or down depending on et's, but either way you go I'd stay square.
Your gonna want it a tad on the lean side for consistancy.
I AGREE. I had a 950 HP when they first came out and it was 78 square and I took the rear power valve out and went to 88's and my plugs were always nice and brown...but I never shut it down at the finish line either...but It ran well.
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Old 03-03-2008, 11:24 PM
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cepx111
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Originally Posted by contagious
Thanx for the reply.Where is southaven? i live in mobile,and race some at hub city and battlefield raceway.
Southaven is a suburban city just south of Memphis, Tn in north west Mississippi I.E.> God's country....
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Old 03-04-2008, 09:28 AM
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i have a 950 hp i have 78 in the front with a 3.5 high flow valve and 88s in the rear and a plug runs perfect
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