When you pull a plug wire off & hold it near the plug, it increases the ignition arc. You have a weak ignition or compression or fuel mixture, the extra punch from holding the wire away is making those cylinders fire. Brian


My \'64\'s in the Gallery
Pictures in my Photobucket
1964 C10 Custom Cab 350/700R4
1964 Suburban 350/700R4
1979 Ford F350 4x4 400/c6