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Old May 5, 2021 | 12:30 AM
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I have a 99 C5 hardtop............it is cammed, heads, and long tubes..............still have stock TB and intake any suggestions.............
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Old May 5, 2021 | 08:47 AM
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FAST 92 fits under the cowl and hood without issue. People also look for Dorman LS3 and LS2 conversions for less expense. Lots of people argue about silver blade vs gold blade. I run a gold one successfully. Though if you've already paid for tuning, I don't know how much gain you can expect from intake and TB. It may be worth it on a heads/cam build, I would do it, but at about a grand or more for intake and TB.... That puts you 1/3 the way to getting a used A&A or ECS kit... just saying...
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Old May 5, 2021 | 01:27 PM
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If you already have a cam, heads, and exhaust the intake and TB are the next weakest link. What cam and heads do you have? Bigger isnt always better. The LS6 intake flows really well and might be better and cheaper. The FAST 92 and LS2 TB would be a good option if you need more air.
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Old May 5, 2021 | 01:50 PM
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If your cam intake duration is >225*
I would suggest a MamoMotorSports (MMS) Ported Fast 92
(The 102 while better, MAY require New Engine mounts to lower for hood clearance)
If you have a LS2 TB, Have Tony port that also.
If not you can buy a new one already ported from Solar Performance for a good price.

A well ported Fast 92 & LS2 TB will be worth 25+ Peak RWHP on your combo EASILY,
More importantly the torque & throttle response from 2500- through your
Whole Power curve will be substantially increased and finish off a great NA Package.
IMO
Just my .02
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Old May 6, 2021 | 04:46 PM
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I was thinking the same....
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Old May 6, 2021 | 04:57 PM
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comp cam in. 220-224 .530 - .532 112
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