I USE THE 4.200, This actually moves the fire ring away from the heat a little, have never had any adverse affects because of it, And also have never blown a gasket, (been supercharged since 1995) I do use a fel-pro gasket ( cant remember part # but its 51 thousant thick compressed If you want the number i can find it, these gaskets are expensive though around 80 bucks apiece)have never liked the cometic, Although a lot of my customers have requested the cometic and i have used them without a complaint.Hope this helps. EDIT: found gasket # and specs.Part # 1046, Gasket Bore 4.200, Comp volume 11.7 cc, .051 thick, Pre flattened steel wire ring,
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Hauling A** on Pump Gas !!!!!
Last edited by Blown 5.0; 09-27-2006 at 06:20 PM.
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