Recent Posts

91

Fuel Systems and Drivability / Re: Quadrajet Replacement

« Last post by zucchi on September 16, 2025, 10:32:19 am »

…saying they are still calibrated after 35+ years…

The rule of thumb is anything that can be adjusted can fall out of adjustment. That's why tune ups are done at regular intervals. Worn parts are replaced and adjustments are administered to bring instrument readings back into spec.

92

Fuel Systems and Drivability / Re: Quadrajet Replacement

« Last post by Captkaos on September 16, 2025, 09:58:20 am »

Quadrajets were designed for these trucks and calibrated when they were new, but saying they are still calibrated after 35+ years and 100K miles, not so much.  Anything still running today would need adjustments especially if the motor is original.  Personally I much prefer Quadrajets, second only to EFI.

93

Projects Posts (NOT VEHICLES) / Re: Using 87 C20 frame for a 87 V20

« Last post by JohnnyPopper on September 15, 2025, 02:30:24 pm »

Take lots of photos before starting 

94

Rear Drivelines, Drive Axles and Gearing / Re: TH350 Dead

« Last post by 1980K20 on September 14, 2025, 10:28:08 pm »

Thanks all!  Took her for an outing yesterday, everything is in order.

On to bigger and better!

95

Rear Drivelines, Drive Axles and Gearing / Re: TH350 Dead

« Last post by JohnnyPopper on September 13, 2025, 12:42:58 am »

Congrats man!!

Happy for you...

96

Members Rides / Re: Hello all.

« Last post by JohnnyPopper on September 13, 2025, 12:40:01 am »

Congrats on taking on the merican opportunity to make a go of it...

Was thinking about you when it was reported that HWood was outsourcing Georgia's role.

97

Fuel Systems and Drivability / Re: Quadrajet Replacement

« Last post by JohnnyPopper on September 13, 2025, 12:33:58 am »

Good question. Thanks!

I have an older GM car, with a QJet, no smog requirement. I paid a smog tech a C-note to sniff the Carbon excess, and adjust it down. It smells alot better...

It's been stated on other threads that these carbs are the best and the worst... you decide 

98

Rear Drivelines, Drive Axles and Gearing / Re: TH350 Dead

« Last post by 1980K20 on September 12, 2025, 08:57:54 pm »

Truck is home!  Shifting is smoother than the last build.  Drive home, most oil leaks should be solved.  Replaced a sketchy freeze plug too.

Just looked for drips, looked like some engine oil drip but no transmission or transfer case oil yeah!

99

Members Rides / Re: Hello all.

« Last post by jeremy.farlow on September 10, 2025, 10:36:45 pm »

So I finally got around to throwing up my own "shingle" as they say:




The whale has been doing really well. There's still things to tidy up here and there, but I've put almost 13k miles on it since the new transmission. It's better everywhere than I really expected it to be. Sometimes I even forget it's 6000 pounds and thirty feet long.

Still, the truck leaves hard enough to surprise a lot of people. Sometimes even me.





Be safe




Jeremy

100

Fuel Systems and Drivability / Re: Quadrajet Replacement

« Last post by zucchi on September 10, 2025, 11:19:04 am »

I acknowledge this topic is two-months old, nevertheless, I'd like to put in my two-cents.
The first question I always ask is, "Is something wrong with the carb you have?" Like the old saying, if it ain't broke, don't fix it.
Unless your QJ is physically damaged beyond repair, e.g., hit with a mallet, it’s best to stick with it. Your car’s linkage, fittings, intake, choke, etc., are all designed to work in harmony with the QJ. Furthermore, as already mentioned, the carb that came with your truck is calibrated for your truck.