427/435 L89 mods?
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3rd Gear
Joined: Dec 2007
Posts: 3
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427/435 L89 mods?
My father finally handed down his Vette - the one I have been drooling over since I was 3. Odometer shows 41K original miles. When he bought the car he also ordered an L88 cam/intake/and Holley 850 double pumper. Aside from swapping those, everything else is as it came from the factory. I wonder if any mods can squeeze a few more ponies out of this beast. Would a spark amplifier help any (MSD or Jacobs)? Anything else you guys can think of ? It runs 11.90's 1/4 with slicks which is no slacker. Looking for a few less tenths perhaps.
Thanks
Thanks
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Le Mans Master
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
K66 ignition (transistor) was required with the L-89 option. If you still have the orginal L-89 parts (3x2 intake/manifold, AIR pump, etc) you might go look at NADA's website before you go do to much. Last time I looked, book value was $157k. There were only 390 L-89's built in '69. And if all the numbers are correct and you have all the docs 
Just my $.02
Just my $.02
