Yes, I bought the aluminum black bolts to close off the AI ports. Provides plenty of room to change plugs. You may want to use a small amount of sealer for the caps that are installed on the intake runners beacuse they fit rather loose and will pop off during a backfire. Be sure to turn the idle mixture screws out to richen the mixture once you perform the procedure to eliminate the backfire problem. Everything you need is in the kit, and well worth the money.
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