what spark plug and gap

Old 05-20-2010, 04:19 PM
  #1  
hotrodharley
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Default what spark plug and gap

my brother bought a set of the bbc pro comp heads for his street machine.468bbc;.he has the thumper cam and 10.25 comp pistons/team g intake and i think a 750 demon carb[vacume sec.]single pump carb...msd dist with the 6-al box...what plugs should he be using?[as to reach and heat range]and what plug gap
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Old 05-22-2010, 12:45 AM
  #2  
cepx111
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NGK #7's or #8's gapped no wider than .035

Cp
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