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Trying to determine setup

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Old 02-23-2017, 12:45 PM   #1
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Default Trying to determine setup

Hello all, New here. I'm in the process of freshening up a LQ9 to put it in my 66 Lemans convertible. I want to go with a carb to keep that old school look. I have the following specs i'm considering. Please let me know if you see anything wrong with this setup. This is just a cruiser so not looking for anything crazy and like everyone, trying to do this on a tight budget. Might do upgrades in the future if money is available.

02 lq9
cam: 228/230 .571/.573 112
https://www.summitracing.com/parts/cca-cl54-428-11
keeping 317 heads and replacing springs
Holley 300-130bk intake
https://www.summitracing.com/parts/hly-300-130bk
carb: summit m2008
https://www.summitracing.com/parts/s...50vs/overview/

msd controller
TH400 trans
torque converter (undecided)

As for the carb, is it better to go with a vacuum or mechanical secondaries?
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Old 02-24-2017, 08:42 PM   #2
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A vacuum secondary carb is typically more street friendly, but not sure if the mpg would really be that much better depending on your driving style.
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Old 02-25-2017, 05:39 AM   #3
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Agree...VS carb better for street.
I know at 60-65mph (3300rpm) my secondarys are starting to open; enough so you can hear them. At that point mpg is going down quick.
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Old 02-25-2017, 11:52 AM   #4
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Great thanks. Looks like VS is it. What about the specs of the other items?
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Old 02-25-2017, 01:55 PM   #5
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The other items all look good
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Old 03-01-2017, 03:32 PM   #6
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For me, it would depend on the stall converter. I don't like vacuum secondary carburetors on anything over a 2800 stall converter. They just don't work well together in my experience.

Other than that, I would love to put you in a Cam Motion brand camshaft and lifters. Here are two good potential combos:

1.) Cam Motion Titan II Camshaft (221/226 .595"/.586"), 2500-3000 stall, dual plane intake (like the Holley you have listed) & a Vacuum secondary 750 cfm Holley.

2.) Cam Motion Titan 4 Camshaft (227/232 .612"/.595"), 3000-3500 stall, dual plane intake (like the Holley you have listed) & a Mechanical Secondary 750 cfm Holley.
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