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Messages - GMAD_Van Nuys

#1
Link to Z28 Holley carburetor database:

https://www.camaros.org/images/doc/302_carb_specs.pdf

Thanks to all for compiling this useful information!
#2
Road & Track tested a Z28 Camaro in a 1968 issue and hit 132 mph in 4th gear at 7100 rpm:

https://mustangtek.com/Library4/RT_68-06.html

#3
Penske experimented with adding power steering to their 1969 Trans Am Camaro, but ended up using the N44 manual steering:

https://www.deansgarage.com/penskes-69-trans-camaro/



#4
If anyone asks about your Camaro competing in Trans Am series, you can tell them that Wiseman finished ahead of Parnelli Jones at the 1971 Lime Rock race (Parnelli only completed 5 laps).
#5
Originality / Re: 4053 fuel bowls
October 17, 2026, 02:16:55 PM
I decided to take the Mustang out for a drive this morning and it started immediately and ran great on my drive around the neighborhood.  Now I have to decide if I want to install the rear axle bump stops I just bought from Summit Racing as the original ones on my 1998 Z28 need to be replaced.  Summit had the GM replacement stops as the aftermarket parts do not fit into the slots that you bolt the stops onto the body. I've always been impressed on how quickly Summit ships their parts.
#6
Originality / Re: 4053 fuel bowls
October 16, 2026, 07:14:44 PM
Joe - My 1970 Mustang also has a Holley 4150 780 carburetor, which runs great, although it can be somewhat hard to start if I haven't driven it in awhile.
#7
Although there were not any photos of Wiseman's Camaro in the book "Trans-Am The Pony Car Wars 1966 - 1972" by Dave Friedman, Wiseman placed 16th at the 1971 Trans-Am race at Lime Rock and 10th at Mid-Ohio.  Great photo of the former Trans-Am car today!
#8
Originality / Re: 4053 fuel bowls
October 16, 2026, 11:16:33 AM
Joe - Other than the part number 134-103 stamped on the 4053 front fuel bowl, I believe the only other item found on the fuel bowl would be the patent numbers (photo is from a CRG photo from a 1967 Holley carburetor):

https://www.camaros.org/images/carb/carb_3910rear.jpg
#9
Garage Talk / Please Don't Select the 1LE Option
October 09, 2026, 04:52:24 PM
I wasn't planning to buy a new car, but my daily driver was totaled in an accident, so I needed a replacement.  The 1998 Camaro just came out with the LS-1 engine, so I went to Cormier Chevrolet in Long Beach and took out a new Z28 which had a six-speed transmission for a test drive.  I was impressed with how easy it was to operate the Camaro and how smooth the power came on with the new LS-1 motor.  Unfortunately, the dealer only had one Z28 with a manual transmission and it was Bright Red.  I decided to order a new Z28 and asked about the 1LE option, which featured double-adjustable Koni shocks.  The salesman said "Please don't select the 1LE option as it will probably take months before the car is assembled as it is a rarely ordered option."  I really wanted those Koni shocks, but the only other available option with the 1LE was a 10 disc CD player.  Although air conditioning was standard, I couldn't get power door locks, so I didn't order the. 1LE.  I did order a number of other options and was glad I got the traction-control as it was much too easy to get the rear end loose, especially when the roads were wet I still have the Z28 today and it is the only vehicle I ever purchased with an extended warranty, which I never used.
#10
Maintenance / Re: Re-attaching Camaro Fender emblem
October 08, 2026, 02:12:28 PM
Tips from Classic Industries for installing Camaro emblems on front fender:

https://news.classicindustries.com/restoring-a-1969-z/28-camaro-chapter-2b-taking-apart-the-exterior
#11
Decoding/Numbers / Re: YH Code wheels?
October 06, 2026, 03:46:00 PM
Information on YH wheels on CRG:

https://www.camaros.org/suspen.shtml#Wheels
#12
When California had the emissions law that vehicles over 30 years old were exempt, I thought of buying a LS-6 454 cu. in crate motor from GM when my 1979 Trans Am became exempt.  After the law was changed, I thought of rebuilding the Pontiac 400 with Edelbrock aluminum heads as they came out with a revised design that had an EO number for emissions in California.  I ended up just leaving the Trans Am original, which is probably a good thing as prices for a 400 Pontiac, 4-speed, WS-6 with air conditioning have significantly increased as it seems buyers are more concerned with comfort than going fast!
#13
Maintenance / Re: DOT 5 Fluid in New Braking System
September 29, 2026, 08:47:55 PM
I only commented about the master cylinder cover being available as a way to prevent brake fluid (no matter what the type used) from spilling out into the engine compartment.  I even bought an OBD2 scanner that can reset the ABS unit if I got air into the system.  I will admit that working on brakes has never been much fun for me!
#14
Decoding/Numbers / Re: vin not matching
September 29, 2026, 04:34:58 PM
The VIN numbers were stamped on the engine and transmission on the engine dress line:

https://www.camaros.org/drivetrain.shtml#PartialVINs

As the numbers are only off by a single digit, the operator could have changed the gang stamp by mistake.  As for how the assembly ended up in 124379N582494, the only thing I could come up with is that this particular Camaro was pulled off the assembly line for some reason and the later serialized engine/transmission assembly was installed in error, which would only be the case if 582494 was assembled before 582508/582509.
#15
Maintenance / Re: DOT 5 Fluid in New Braking System
September 29, 2026, 04:12:45 PM
Motive has a cover that you can put over a dual reservoir master cylinder and avoid spilling brake fluid as you pressurized the brake system and bleed the calipers/wheel cylinders by opening the valve:

https://www.summitracing.com/parts/mvp-1105?seid=srese1&ppckw=pmax-tools&gad_source=1&gad_campaignid=19201424812#overview

I use a MiniVac hand-powered vacuum pump to empty the master cylinder and to bleed the brakes on my vintage cars and those that have ABS without a problem.