News:

We have implemented a Photo Gallery for hosting images right here on SAACFORUM. Check the How-To in News from HQ

Main Menu
Menu

Show posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Show posts Menu

Messages - Pcunder

#1
Appeals / Re: Shelby 289/302 ram box/mini-plenum
August 07, 2026, 09:51:44 AM
Thanks for the great info guys.

Thx for the great pix Roy.
Which Autosport? catalog is that page out of that give the carb info, part #, prices?

In 1 of em, it looks like the bolts holding the lid down are chromed. It jumped out bcz my 3/4" long 14 bolts for the lid are chrome.

Anyway, now the hunt for the single 4V lid. I've got a lot of 780s...but no 600s

Those NOS 4100s are only 480cfm but not sure if that's close enuf...as they say.

While collecting Autolites, I wan across a device that "converts" a 4100 to mechanical 2ndaries...No, not a double pumper but wonder if that's close enuf or makes it better... Hmmmm

I should have already tested it on my Paxton/Cobra airbox/enclosure by now.

Phil
#2
Appeals / Re: Shelby 289/302 ram box/mini-plenum
August 06, 2026, 12:17:08 AM
Kram350,

Those are great pix of the single 4v lid...so thanks. The underside vanes are critical I'm sure for anything close to 'proper' distribution.

Where would I get a lid gasket...or did you just make your own? It came with 1 but it's toast; dry/cracked/torn.



Upon inspection, my 'new' intake appears to be unmolested...even NOS showing no bolt marks, corrosion, mods or gasket/pookie...just a lot of dust


#3
Appeals / Re: Shelby 289/302 ram box/mini-plenum
August 04, 2026, 02:14:08 PM
Scott, Good points.

I'll be more careful with my inspection as I look for alterations, repairs & not just stamp/cast #s/IDs.

I know that switching lids on a plenum
Style box is less than ideal..but knowing Ford/Shelby/Buddy Bar made a single 4v lid means something went into it even if it was meant for the racer to modify as required.

🤞🏼🤞🏼🤞🏼

Phil
#4
Appeals / Re: Shelby 289/302 ram box/mini-plenum
August 03, 2026, 09:57:57 PM
Wow thanks... that is great info.

Was the 1x4v lid 'factory Shelby/Buddy Bar" or fabricated? I was gonna see if my single Cross-Boss lid would work.

So a LeMans cam probably would not be enough to fill the plenum till 3500 rpm?

Sounds like I need some better heads too.
#5
Appeals / Shelby 289/302 ram box/mini-plenum
August 03, 2026, 06:26:02 PM
Anyone have any information on this "SHELBY" lettered ram box. Says Buddy Bar inside. Note the 4100s mounted.

Now, it's got a 2x4v lid where the carbs are mounted side by-side...that makes it look like a cross-ram. It looks similar to a mini-plenum or a cross-boss lid.


I'm wondering:
-did they work well (drag or road race)
-were different lids available;like 1x4v

Thanx, Phil
#6

SOLD..
#7
Sold 8D25 unmarked nodular case/carrier.


Anyone know how to read the date on the C5AW-C Daytona pinion support?

L4 or A-2?

Thx, Phil
#8
The 70 B2 steel wheels were 15x7 & ofc, disk brake compatible. 69s only came with Magnums; painted or chrome.

There were quite a few out there as it was the standard offering in 2 version with hub caps/trim rings. Chrome Magnum 500s was the only factory option that year and the iconic design became the defacto "BOSS Wheel" upgrade from there forward.

The plain steel rims are fairly rare as most were discarded for the various Day 2 Alum options as well...

You would SAVE some $ by not hunting  down the special caps/covers/rings.

#9
Thanks Tim, I got your msg.
#10
Parts For Sale / Late 68 no “N” pig; 8D24 date
July 17, 2026, 01:54:45 PM
Late 68/early 69 Nodular carrier, no "N"

C4AW-B 8D24 fresh/new bearings.

I'll sell complete or stripped but it's built with some incorrect parts like;

28-spl Det Locker & 4.56 Richmond gears
but Daytona pinion suppt & the longish yoke fits properly w/1330 size so likely correct. (cap ODs measure 1 1/8", 3 5/8 W)

1600  complete + shipping
700  bare w/caps & I'll ship

Price is obo.
Open to trades, suggestions, whatever.

Im not sure what this is worth but know someone here will clue me in.

I'd keep it but:
Too early for my 69 B2 (31-spl)
Too late for my 66 stealth GT.



#11

I have a set of 15x7 that were re-rimmed (from 6" rims) by the guy in Denver....now closed down. 
They look like the Shelby style Magstars (big window)

PM for info. They come with 4 new center caps (Paradise Wheels).

Phil
#12
TexasSwede is right.

The CB (circuit breaker) inside a Mustang/Shelby/Boss headlight switch can "trip" when overheated but will reset once cooled off. I assume you can "blow" one from constant abuse or maybe just age and then, a new one is in order... I learned a lot while troubleshooting lighting gremlins in a 70 while swapping with 69 parts.

Got this CB info straight from the Ford Shop Manuals for Mustangs

Year        Amps
-----------------------------------------------------------------------------------------------------
66           12       (Falcon also)                                        18=   Comet, Fairlane
67            ?         No manual
68           12       (Falcon also)                                        18=   Cougar, Fairlane, Montego
69           18       (also Cougar, Fairlane, Falcon, Montego)
70           12       Falcon/Maverick also                            18=   Cougar, Fairlane, Montego

69 CB rating IS higher than the 70 (due to supporting 4 headlights vs 2) but is exactly plug & play.

FYI: there are multiple CBs in each Headlight switch & not only for lighting, like horns!

HTH,

Phil
#13
Good point Ed... I just realized that last night as I gazed at the back of my 70 B2 trying to visualize the whole thing. How did the 69/70 Shelbys have theirs lit?

I guess just daytime driving could be an option...to stay legal.
Kinda like my hardship license when I was just 15; "daytime only or to & from work..."

I might have to get creative here...by running the wire thru 1 of the filler-neck screw holes.

#14
Wanted to Buy / Re: Wanted: NOS C3OZ-6513-A valve springs
November 09, 2021, 12:34:56 AM
Are these the Yellow stripe springs?

If so, I've got a set of 8 NOS, unboxed...& another 8 in the Ford box.

I've got mostly Boss 302 stuff so I need bigger springs.

I'd want to sell 8 unboxed or all 16. What do you think these are worth?

Phil
#15
Ok, good...

I bought NOS OEM Ford stuff as I'd heard that some aftermarket replacement parts are...well, let's just say they're cheap for a reason. 

And I was damn tired of troubleshooting, testing, swapping... it was much more, of course, but shopping around online can save a few $.

Oh yes, I had 1 ground wire completely missing from the main connector to the turn signal switch as well as a crushed wire in the same harness (pinched almost in half where the steering is bolted to the dash.) so, I basically had 3 problems causing my weird symptoms. 

Also, I added factory sport lamps, OEM AC, an MSD box, and dual electric fans (drawing their power thru relays directly fm battery via fat fused hidden wires)