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Cuba, Havana
1 Level
712 Review
69 Karma

Review on Competition Cams 986 16 Valve Spring by Predrag Hall

Revainrating 2 out of 5

GT40 Heads - Engines and Engine Parts

Will not work with Ford GT40 compact heads with umbrella valve seals. I'm sure they are great nibs, just not for my purposes.

Pros
  • Seat Pressure: 132 lbs. @ 1,750 inches, open pressure: 293 lbs. @ 1.250 in.
Cons
  • Clarity