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Messages - 68gtcoupe

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1967 Shelby GT350/500 / Re: So which Holley 4150 is best ?
« on: March 06, 2021, 05:10:31 PM »
What's great about Holleys is that there is such a variety and you can keep trying different combo until you find the right one. What you like someone else may not.

+1. Well said.

1967 Shelby GT350/500 / Re: So which Holley 4150 is best ?
« on: March 06, 2021, 07:02:29 AM »
This might be apples to oranges, but many years ago I owned a 1974 Mustang II that the PO had installed a 351W into. I tried many different carburetors on it back then, being a teenager working at a local speed shop in the DC area. Finally happened upon a Holley 600 DP that a local fellow had been using on a small block Vega that he drag raced. The choke had been removed, including the air horn, it was painted orange and just looked ratty.  That carburetor was just RIGHT. I bolted it on, set the idle speed and never fiddled with it again.   

Ask a Registrar / Re: 1967 Shelby Mustang registry
« on: March 03, 2021, 10:51:32 AM »
Iíll go out on a limb here and predict weíll see it by 12/31/21. 

Nice!  Maybe the value of the Autolite C8ZF-D thatís been sitting in a box in my basement just went up a few bucks.

1968 Shelby GT350/500/500KR / Re: Antifreeze in oil, HELP
« on: February 23, 2021, 09:15:05 PM »
Believe I have used the Mr. Gasket 5831 (Ultra Seal) in the past with good results


1968 Shelby GT350/500/500KR / Re: GT350 Aluminum Intake installation
« on: February 14, 2021, 02:11:53 PM »
One of the issues here is that there are two different cork thicknesses. The original one was thinner then virtually everyone you get in anyone's "kit" including Fel-pro,

The expensive issue is going to be that the COBRA aluminum intakes can be fragile on the rear two bolt holes and often we see repaired manifolds were those tabs have been cracked or even snapped off.

In order to use the current supplied cork ends you are going to need to compress them and I don't know how that you do that without clamping them down with the manifold?

If you want to risk that, that's up to you but that can be a VERY expensive mistake to damage that intake and I'll also point out that the rear water ports are where the gaskets like to leak sometimes internally where you don't see it.

You CAN use the cork ends but all things considered it is MUCH safer to trash them and just RTV the ends. However, it's your choice and neither is a mandatory decision. It's just you who has to regret not going the safer route.

+ 1 on ditching the cork end seals and going with RTV.  I've noticed that the aftermarket intake manufacturers (Edelbrock, Weiand) tell you to discard the cork end seals and use RTV in their instructions.


1968 Shelby GT350/500/500KR / Re: Accelerator Return Spring Bracket
« on: February 14, 2021, 02:08:48 PM »
With regards to the return spring, Bob Mannel's SBF book, page 8-26 makes reference to "a new light blue colored spring" for 1968.  Having said that, the book is not Shelby-specific, and this reference does mention that this was for Mustangs, Cougars and Falcons with the Autolite 4300 4V.  But I can't imagine the spring would have been any different between the J-code Mustang and Shelby GT350 in 1968.  Also can't imagine it would have been changed for cars having undergone the recall modifications related to intake/carb in 1968. 


SAAC Forum Discussion Area / Re: The Marque/The Shelby American ?
« on: February 13, 2021, 01:11:37 PM »
Thank you very much to everyone who replied to my original post. Very helpful information. Much appreciated.


SAAC Forum Discussion Area / The Marque/The Shelby American ?
« on: February 13, 2021, 10:05:50 AM »
I am building my collection of The Marque and The Shelby American magazines.  Currently have issues 31 through present of The Shelby American, haven't started buying any issues of The Marque yet.  Was wondering when the numbering system/cover appearance changed for The Shelby American.  Thanks


Up For Auction / Re: 1968 Shelby #101 up for auction
« on: February 13, 2021, 09:41:24 AM »
Man, if I had to pick just one, this one might be it. Super cool.

Misc. For Sale / Re: Shelby American Magazines
« on: February 11, 2021, 03:32:17 PM »
PM sent

Wanted to Buy / Re: 1967 or 1968 Mustang / Shelby dash pad
« on: February 09, 2021, 05:40:24 PM »
There is one on eBay at the moment. $1499.

1968 Shelby GT350/500/500KR / Re: 68 GT350 fuel pump inlet size
« on: February 06, 2021, 10:28:03 AM »
I have a Carter button top fuel pump, restored by Fred Ballard if you need one. Never installed after I got it back from him. 


CSX 2000 Series / Re: Former Daytona Coupe owner dies
« on: January 17, 2021, 06:01:28 PM »
A nut by all accounts, no doubt about that. While there is no disputing his significant contributions to the music industry, there was definitely more than one screw loose with that one.

SAAC-45 / Re: SAAC-45 Convention Update
« on: December 18, 2020, 01:02:57 PM »
New Hampshire Motor Speedway?  They only have one NASCAR Cup Series race now. Lots of lodging options in Tilton, Laconia and Concord.  Beautiful part of the country, many things to see and do for folks that may want to make a week of it.  Just a suggestion.

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