Messages

46

Maintenance / Re: vacuum location for advance canister

« on: March 29, 2023, 07:34:10 PM »

If you choose to have a better running engine, you may need to select a different cannister.  If you know how much vacuum you are pulling at idle, you can select an optimal canister. 

47

Maintenance / Re: vacuum location for advance canister

« on: March 29, 2023, 07:30:29 PM »

It's about factory "correct" or "better running".  Factory correct is hooked up to a carburetor "ported" nipple.  Better running would not use "ported".  You might need to do some reading on the subject and decide which way you want to go. 

48

General Discussion / Re: Crossram, was there ever a single carb adapter plate?

« on: March 09, 2023, 03:02:48 PM »

You Really Need this reference: Page 101 aka 1x4 ADAPTOR PLATE

https://www.bing.com/shop/productpage?q=untold+secrets+camaro&filters=scenario%3a%2217%22+gType%3a%2212%22+gId%3a%22122846174475%22+gIdHash%3a%220%22+gGlobalOfferIds%3a%22122846174475%22+AucContextGuid%3a%220%22+GroupEntityId%3a%22122846174475%22+NonSponsoredOffer%3a%22True%22&productpage=true&FORM=SHPPDP&browse=true

WOW!  That book got EXPENSIVE!  Bought mine for $18.

49

Maintenance / Re: Timing

« on: March 06, 2023, 03:36:00 PM »

I assume Jerry is providing you with a "B28" vacuum canister?  It's a must to getting the manifold vacuum advance working on a 302, or any low vacuum idle application.  Getting hard to find these days.

50

Originality / Re: 1969 Camaro trim tag legit?

« on: February 27, 2023, 03:34:44 PM »

SOLD $97K  O-M-G! 

51

Restoration / Re: Engine rebuilt

« on: February 25, 2023, 03:01:50 PM »

You need to read this link below.  Your intake manifold needs to be addressed.


https://www.corvetteforum.com/forums/c3-tech-performance/1978483-early-c3-q-jet-base-gasket-tech-info-the-hot-slot-intake-manifold-problem.html

52

General Discussion / Re: Camaro Books

« on: February 24, 2023, 01:50:35 PM »

The GM Assembly Instruction Manual is great.
GM Service Manual is also great

I am not a fan of Hoopers books. I bought the 67-73 Data book and it has a number of issues.  1 page in the "69 section shows the blue "GM" stickers inside the door jamb that should not be there.  Right next to that photo is a photo of an incorrectly painted (all silver) spare tire rim.  I could go on.  Hard to get it right with a reference like that.

53

Maintenance / Re: Replacing Heater Control Cables - Maybe

« on: February 13, 2023, 04:38:23 PM »

I "functionaly" rebuilt mine.  Used a common aftermarket choke cable housing. 

Just remove GM control cable assembly from the kick panel and nip off the end of the steel inner cable as close to the jog as possible so you can pull it out of the original plastic housing.  You will be reusing the GM inner steel cable/knob assembly so it looks original once installed. 

Remove the aftermarket inner choke cable from its housing and discard the inner cable/knob.  You will need to measure carefully to set the final length of the replacement cable housing (just a little bit shorter than the original cable housing).  The reason you have to cut it short is because you already trimmed off the original cable so that is shorter now.  Put the original knob/cable into the new housing and duplicate the factory jog bends.  Reinstall the cable assembly.  Works great and looks stock unless you pull the lever out and look very closely where it goes thru the kick panel. Sharp eyes will see the tiny zinc end of the new cable housing only.

Might work for you.

54

Decoding/Numbers / Re: Block Pad Stamping

« on: February 13, 2023, 04:19:35 PM »

Sorry, but it's a restamp. Trans is too.
Trim tag is an original.

Restamps must be getting better.  This first one would have fooled me for sure.

55

General Discussion / Re: Marking on rear seat support

« on: February 13, 2023, 04:10:37 PM »

I would guess X33 with black interior? 

56

Decoding/Numbers / Re: Smog Pump Info Help

« on: January 18, 2023, 04:52:24 PM »

Just something to be aware - smog pumps have date codes and a casting number on the rear plate but they are machined differently depending on application.  In other words, you could be holding a Buick smog pump that will not  bolt up to a Chevy bracket.  Dates and casting numbers alone will not positively identify a pump.

57

Mild Modifications / Re: RPO-ZL2 Kit

« on: January 01, 2023, 02:51:45 PM »

You already have most of the kit so why go that route?  The aftermarket throttle switch, solenoid and switch retainer are all junk.  My advice is to go NOS on the switch and retainer.  Find a used Corvette flapper solenoid (same part number but MUCH cheaper).  You need a few repro parts after that but not too bad. The wiring would be set up to install as an accessory so it's easy.  Even with all that, the setup is finicky.  Mine needs to be messed with every so often to stay functional.  At least it's all there.

58

Restoration / Re: Engine rebuilt

« on: January 01, 2023, 02:41:18 PM »

The bigger aftermarket pushrods will not fit without cylinder head machine work.  You would need to drill out the original obround pushrod holes to a larger diameter to accept the bigger diameter pushrod.  The rocker arm studs would all be pulled out then the tops of the bosses are cut down about 1/4" or so.  The rocker arm stud holes are then drilled and thread tapped for screw-in studs.  You would need to buy wider slot steel pushrod guide plates to match the new larger diameter pushrods as well.

You might be able to use a later design guided-tip rocker arm and avoid the extra rocker stud machine work and special guide plates but the pushrod holes still would need to be opened up. Those guided tip rocker arms are only for hydraulic cams because you cant get a feeler gauge in there to set the lash.

Bottom line - you probably want to stick to the smaller (stock) pushrod design  Keep it simple.

59

General Discussion / Re: Rear Bumper unacceptable fit with tall guards

« on: January 01, 2023, 02:23:58 PM »

The aftermarket tall guards look great but fit terrible.  No way to make them fit as delivered.  Are you going to grind and re-chrome them to make the fit better?  Not something I would do.

NOS is expensive, but they just bolt on.  Tough pill to swallow.

60

Maintenance / Re: Primary Accel squirter nozzle

« on: December 08, 2022, 12:37:32 PM »

I would bend the finger down with pliers.  No biggie.