[PA] '89 ported plenum
01-30-2013, 07:44 AM
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Car: '89 GTA 9,000 MILES
Engine: 350
Transmission: 700R4
Axle/Gears: 3.27 9 bolt
Re: '89 ported plenum
nice pics and very clean but please add pic of the throat area ?
Also ported to match what at each end ?
Also ported to match what at each end ?
02-03-2013, 01:28 PM
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Car: 89 GTA
Engine: L98
Re: '89 ported plenum
I don't have a pic of the throat area. I can get one if it's necessary though.
I have no idea what it was ported to, and I don't have a way of measuring it.
I have no idea what it was ported to, and I don't have a way of measuring it.
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02-08-2015, 03:30 PM
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Car: 1989 Formula Firebird
Engine: 305 TPI
Transmission: 5-speed
Axle/Gears: 3:45
Re: '89 ported plenum
Did you notice any difference in performance with the porting? How much do you want including shipping?
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