F-Body Lover

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

F-Body Lover

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

1997bird

iTrader: (2)

The 'Vette' heads use the 14mm x .750" reach gasketed plugs. How much of a n2o shot are you running?

F-Body Lover

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

1997bird

iTrader: (2)

By "burning the spark plugs", what does the inner porcelian look like? Are they flat white, white with little speckels, flat black, tan, etc... ?

F-Body Lover

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