C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Holly AFPR Owners, does it clear your plenum?

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Old Apr 19, 2004 | 06:40 PM
  #1  
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Default Holly AFPR Owners, does it clear your plenum?

I've recently installed the Holley AFPR on my L98, and when reinstalling the plenum noticed that it rests against the underside of the plenum.

Anyone else have this issue?

Should I go at it with a dremel?
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Old Apr 19, 2004 | 08:49 PM
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Default Re: Holly AFPR Owners, does it clear your plenum? (FlyboyZR1)

On my original setup , I had a similar problem that a dremmel took care of.
You have to have some leeway to adjust the pressure.
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Old Apr 19, 2004 | 08:53 PM
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Default Re: Holly AFPR Owners, does it clear your plenum? (FlyboyZR1)

No problems here on my 86.
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Old Apr 20, 2004 | 09:31 AM
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Default Re: Holly AFPR Owners, does it clear your plenum? (FlyboyZR1)

Didn't have to dremel, but it is a tight fit.
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Old Apr 20, 2004 | 09:32 AM
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Default Re: Holly AFPR Owners, does it clear your plenum? (HeeHaw89)

I needed to grind the plenum a little bit on my 86.
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Old Apr 20, 2004 | 10:22 AM
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Default Re: Holly AFPR Owners, does it clear your plenum? (FlyboyZR1)

No problem on my 89.
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Old Apr 20, 2004 | 12:52 PM
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Default Re: Holly AFPR Owners, does it clear your plenum? (GKK)

Fit fine on my '89, using AS&M runners though, never tried with stock ones.
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Old Apr 20, 2004 | 03:47 PM
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Default Re: Holly AFPR Owners, does it clear your plenum? (FlyboyZR1)

Mine hit the plenum, but it was nothing a little grinding with the dremel couldn't take care of. I took a fair amount of material off, just be carefull you don't go through.
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Old Apr 21, 2004 | 12:25 AM
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Default Re: Holly AFPR Owners, does it clear your plenum? (GKK)

No problem on my 89.
Same here- no probs. :)
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Old Apr 21, 2004 | 01:22 AM
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Default Re: Holly AFPR Owners, does it clear your plenum? (FlyboyZR1)

No problems with clearance.
I set my pressure with the plenum off. Have you adjusted it to the proper psi, maybe it will sit lower.
:cheers:
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