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could i do a small porting myself?

Old Jul 10, 2007 | 06:39 PM
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kowboy59's Avatar
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From: kissimmee fl
Car: 88 iroc-z z-28
Engine: 383
Transmission: th400
Axle/Gears: 3.42
could i do a small porting myself?

Would that work? I mean like with a sharpie, outline the openings of the upper plenum and bore it out to the black mark. I just thought of it but im really tired and dont know if I just thought some dumba** thing. im good at machining things but i mean idlk if it takes some special tools or that wot help hp wise
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Old Jul 10, 2007 | 08:00 PM
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From: SW Michigan
Car: '88 G T/A
Engine: L98
Transmission: 700R4
Axle/Gears: 3.27 9 Bolt
Re: could i do a small porting myself?

I ported my plenum with a die grinder and carbide bits. Knock down the walls behind the throttle body, smooth/enlarge the tube holes if you want.

Do some work on the lower intake where it transitions from rectangular to round, thats a real bind spot.
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Old Jul 10, 2007 | 08:12 PM
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kowboy59's Avatar
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From: kissimmee fl
Car: 88 iroc-z z-28
Engine: 383
Transmission: th400
Axle/Gears: 3.42
Re: could i do a small porting myself?

Well that sounds good. But can i siamese my lower intake somewat easily?
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