LT1-LT4 Modifications 1993-97 Gen II Small Block V8

lt1 throttle body

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Old Mar 20, 2012 | 02:32 PM
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Default lt1 throttle body

I bought a Holley TB but the air holes on the intake are smaller then the tbs would it be better to match the TB holes with the intake?
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Old Mar 20, 2012 | 02:35 PM
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Assuming you bought a 58mm throttle body, you have to have the intake plenum ported to match. This means pulling off the intake manifold, tracing the gasket onto the face of the intake, and removing the material using a Dremel or die grinder.
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Old Mar 20, 2012 | 02:41 PM
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^^This.l
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Old Mar 20, 2012 | 02:45 PM
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Will this increase power..can it be done with the intake on
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Old Mar 20, 2012 | 04:02 PM
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Originally Posted by z28tommy
Will this increase power..can it be done with the intake on
If your car is stock them very little increase in horespower if any at all . You MUST TAKE OFF the intake all the aluminum would go in the engine if you dont take it off .
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Old Mar 20, 2012 | 04:26 PM
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I got long tubes,cai,gears,new,opti,and of course the Holley tb
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Old Mar 20, 2012 | 06:41 PM
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You probably won't see much id throw it on and justt port the intake if you decide to do a cam swap
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