First performance upgrade since 1990 :)
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From: Western Ky
Car: Z/28..39 Plymouth truck in progress
Engine: S/B
Transmission: Manual
First performance upgrade since 1990 :)
Sill need to run the fuel line from the pump and do the wiring plus get a MSD digital window switch and wideband.....also thinking about upgrading to a MSD 6-AL2 to take advantage of the custom curve with stepped boost timing control and the fact it has a sensing line for the NOS system activation for even additional timing control when the system is armed.












Thread Starter
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Joined: Jan 2004
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From: Western Ky
Car: Z/28..39 Plymouth truck in progress
Engine: S/B
Transmission: Manual
Re: First performance upgrade since 1990 :)
Lol just a little intercooler for those mid summer nights when its 95 degrees and 98% humidity to pick back up the performance loss
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From: Mid West
Car: '87 Camaro
Engine: '92 Carb'd 350
Transmission: 700r4
Axle/Gears: factory stock
Re: First performance upgrade since 1990 :)

" Mower gas " prices just shot up!! LOL!!
NOS timer to come??
Thread Starter
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Joined: Jan 2004
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From: Western Ky
Car: Z/28..39 Plymouth truck in progress
Engine: S/B
Transmission: Manual
Re: First performance upgrade since 1990 :)
Yes, yes the prices did
...really really going to hurt on the Power Tour this year.
I dont know about a progressive timer yet....figured I was going to see how hard the hit was during testing then make that decision. I have never had any experiance with nitrous before, I have been thinking about doing this for over 20yrs but never pulled trigger til now and am finding there is not a lot of info on using it with a roots blower out there!
The kit came with 100-500 jets but I am going to get the lowest set NX has (30 I think so that would make it 60) to do the inital testing, but I will also need to find out from NX what fuel pressure I will need to run with those since they are not on the chart they sent with the system.
The other thing I ran into was I had to modify the bottoms of my Carter Competiton Series carbs.....the plates were made for holleys and my Carters had some casting pockets that were exposed using the plates so I had to fill them and do a little machining so I didnt have any vacuum leaks.
...really really going to hurt on the Power Tour this year.I dont know about a progressive timer yet....figured I was going to see how hard the hit was during testing then make that decision. I have never had any experiance with nitrous before, I have been thinking about doing this for over 20yrs but never pulled trigger til now and am finding there is not a lot of info on using it with a roots blower out there!
The kit came with 100-500 jets but I am going to get the lowest set NX has (30 I think so that would make it 60) to do the inital testing, but I will also need to find out from NX what fuel pressure I will need to run with those since they are not on the chart they sent with the system.
The other thing I ran into was I had to modify the bottoms of my Carter Competiton Series carbs.....the plates were made for holleys and my Carters had some casting pockets that were exposed using the plates so I had to fill them and do a little machining so I didnt have any vacuum leaks.
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From: Peoria, IL USA
Car: 91 GTA
Engine: 377ci
Transmission: T56
Axle/Gears: QP Ford 9" 3.70s
Re: First performance upgrade since 1990 :)
Looking very sweet! Man your car just keeps getting better and better. Your leaving me no chance to catch up :-)
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From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: First performance upgrade since 1990 :)
Originally Posted by flrtin1
The other thing I ran into was I had to modify the bottoms of my Carter Competiton Series carbs.....the plates were made for holleys and my Carters had some casting pockets that were exposed using the plates so I had to fill them and do a little machining so I didnt have any vacuum leaks....
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From: Scottsdale, AZ
Car: 89 GTA/93 S13/91 Si
Engine: 5.7 350 TPI
Transmission: 700R4
Axle/Gears: 3.23
Re: First performance upgrade since 1990 :)
thats crazy dude..lol..not only the car but that you havent modded it since 1990
you GOTTA have other projects right?
you GOTTA have other projects right? Thread Starter
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From: Western Ky
Car: Z/28..39 Plymouth truck in progress
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Transmission: Manual
Re: First performance upgrade since 1990 :)
How have the Carter carbs been w/boost in terms of the weighted secondary door? I know that Carter made a kit once upon a time that included varying weighted air door flaps (some heavier, some lighter, etc) to help dial in the secondaries, but it was discontinued a long time ago. How are they under boost?
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From: Western Ky
Car: Z/28..39 Plymouth truck in progress
Engine: S/B
Transmission: Manual
Re: First performance upgrade since 1990 :)
hahaha you are doing a fine job "keeping up" Dave

Havent looked at your thread today....is the rear done? We did some cruising last night and didnt see ya.
Last edited by flrtin1; Apr 30, 2011 at 11:31 PM.
Thread Starter
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From: Western Ky
Car: Z/28..39 Plymouth truck in progress
Engine: S/B
Transmission: Manual
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From: Peoria, IL USA
Car: 91 GTA
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Transmission: T56
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Re: First performance upgrade since 1990 :)
No the Rear is sitting under the car, but not attached. I ordered a stainless brake line kit from EBmiller that has not showed up. I am debating if I should install without it.
Then I got the bright idea to change my fuel lines over to Teflon. So I did that today. That is pretty sweet! I routed them through the trans tunnel and you cannot see them now. It cleaned it up a bit and it has been holding pressure for the last 3 hours!
I also decided on a better cutout. I can't leave well enough alone.



Sounds dreamy and Now my car can be all the way quiet again.
I may hoist the rear in tommorow.
Then I got the bright idea to change my fuel lines over to Teflon. So I did that today. That is pretty sweet! I routed them through the trans tunnel and you cannot see them now. It cleaned it up a bit and it has been holding pressure for the last 3 hours!
I also decided on a better cutout. I can't leave well enough alone.



Sounds dreamy and Now my car can be all the way quiet again.
I may hoist the rear in tommorow.
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From: Western Ky
Car: Z/28..39 Plymouth truck in progress
Engine: S/B
Transmission: Manual
Re: First performance upgrade since 1990 :)
looks good, better get going man I think the monsoon season is over atleast for a little bit and you need to get some break in time before the PT.
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From: Norwalk, CA
Car: 91Z28
Engine: 5.7 ls1
Transmission: 4l60e
Axle/Gears: 3.42
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