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Under drive pulley???

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Old Jul 25, 2009 | 06:20 PM
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SPOOLIN Z28's Avatar
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Default Under drive pulley???
Anyone here use trickflow's underdrive pulley kit? Does anyone recommend a certain kit?
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Old Jul 26, 2009 | 12:13 AM
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Powerbond or SLP they are the same.
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Old Jul 26, 2009 | 12:29 AM
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I run the SLP
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Old Jul 26, 2009 | 11:46 AM
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im looking at the slp underdrive pully and it looks pretty good. did you notice some power increase and do you like it overall?
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Old Jul 26, 2009 | 12:41 PM
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slp says you need a new bolt. is there a certain one you need?
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Old Jul 26, 2009 | 01:51 PM
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I gained about 5hp but more throttle response than anything.
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Old Jul 26, 2009 | 02:07 PM
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SLP supplies the bolt when you buy one.
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Old Jul 26, 2009 | 04:47 PM
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thanks for the info guys. jus ordered my slp underdrive and my sfi flexplate. as soon as they get in i will get my rotating assembly balanced and turbo kit should be finished by then!!
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Old Jul 26, 2009 | 05:02 PM
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whats better:

1. SLP Harmonic Balancer/Underdrive Pulley, 98-02 LS1 Camaro/Firebird

or

2.ASP underdrive pulley system for 98-02 LS1 F-body
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