Small Block & Big Block Chevy Specific Mouse & Rat Motor Discussion & Conversions

Cam advice..help

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Old Jan 4, 2008 | 06:51 PM
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Default Cam advice..help

My friend needs the perfect cam for his combo its a 355 with vette aluminum heads(dont know the cast number),double springs,1.5 Trick flow rockers,Holley 750cfm,Victor jr intake,Lunati hydraulic flat 246/246 515"/515" 108LSA,TH-350 with TCI 3500 stall all this on ZX 300 '91 and he want to spray nitrous but he want to swap the cam to a nitrous cam but he didnt find the perfect nitrous cam for his set up...help
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Old Jan 4, 2008 | 07:39 PM
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BTW the engine burns alot of spark plugs they dont know the original Spark Plug Reach and if it was Gasket Seat or Tapered and they are using a 0.750 in (this one http://store.summitracing.com/partde...5&autoview=sku ) does anyone know the factory spark plug reach for 90 aluminum vette heads and if it was gasket seat or tapered? I guess its 0.460

Last edited by F-Body Lover; Jan 4, 2008 at 07:45 PM.
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Old Jan 4, 2008 | 08:28 PM
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The 'Vette' heads use the 14mm x .750" reach gasketed plugs. How much of a n2o shot are you running?
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Old Jan 4, 2008 | 08:31 PM
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then why the spark plugs are keeping bruning everytime they change them? they are thinking of 200 shot but I told him start with 100 then go 150 after that hit 200 shot
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Old Jan 4, 2008 | 08:53 PM
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By "burning the spark plugs", what does the inner porcelian look like? Are they flat white, white with little speckels, flat black, tan, etc... ?
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Old Jan 4, 2008 | 10:44 PM
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well Im sorry I cant answer you that because he live in another country I will ask him the same question he just told me that the car just keep burning spark plugs and I added his problem here
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