Reply to "Holley carburettor adjustment needed"

dipascaleMember

Recently I had a defective new ngk spark plug, without really believing it, maybe changing the 8 spark plugs. Yes, for me too the depression value of 16 in seems high to me but you measured it at 1500 rpm and not at 800-1000 rpm for your information, with a bullet cam with 226°int and 234°exh @ .050 and a 58° crossover I only have 11-12 of vacuum at 900 rpm. If the engine accelerates with an additional air intake, it is too rich.

8/29/2312:21 PM

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