Returning Member

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

82sbshortbed

Fuckemall!!
Joined
Mar 1, 2018
Posts
14,645
Reaction score
48,559
Location
SE Texas
First Name
Doug
Truck Year
1982, 1984
Truck Model
1500 shortbed, 1500 longbed
Engine Size
454, 305
I had a 1406 on my 454 and it was a dog. I swapped a level 2 quadrajet on it and it's a world of difference between the two. I have a rv cam, intake and Lt hedders on it too. Sob spins the tires from dead stop now. Much better throttle response also.
 

Vbb199

B-rate Hillbilly Customs
Joined
Jan 12, 2018
Posts
8,871
Reaction score
14,885
Location
Salisbury NC
First Name
Vince
Truck Year
89, 79
Truck Model
89 Suburban R1500, 79 C10
Engine Size
350, 502
I had a 1406 on my 454 and it was a dog. I swapped a level 2 quadrajet on it and it's a world of difference between the two. I have a rv cam, intake and Lt hedders on it too. Sob spins the tires from dead stop now. Much better throttle response also.


Im jealous, ****** shortbus :( :mad:
 

83Burban

Full Access Member
Joined
Apr 10, 2021
Posts
193
Reaction score
261
Location
Kansas CIty, MO
First Name
Matthew
Truck Year
1983
Truck Model
Suburban K10
Engine Size
454
With a 454, I would think 750cfm would be the right size. Do you know what type of cam that you are running?

I do believe it is stock...but I'm not 100% sure. There is no lope...vaccume is pulling 18-20lbs of mercury at idol.

And....im pretty sure you are correct. I just got ahold of some bad info. Made a couple minor adjustments to the floats and the 750 seems to be much better.

But....i did have to time it 6-8° BTDC. They says these 454s should be set at 4....but the vaccume guage claimed latent timing.

Thing fires right up now....like....if its even a little warm, its instant. Faster than our 2014 Ford Fusion.
 

cstew47

Full Access Member
Joined
Feb 7, 2015
Posts
181
Reaction score
120
Location
colombia
First Name
craig
Truck Year
1978
Truck Model
K5
Engine Size
383
I do believe it is stock...but I'm not 100% sure. There is no lope...vaccume is pulling 18-20lbs of mercury at idol.

And....im pretty sure you are correct. I just got ahold of some bad info. Made a couple minor adjustments to the floats and the 750 seems to be much better.

But....i did have to time it 6-8° BTDC. They says these 454s should be set at 4....but the vaccume guage claimed latent timing.

Thing fires right up now....like....if its even a little warm, its instant. Faster than our 2014 Ford Fusion.
Sounds like you are getting your arms around the problem. I finally found someone here that knows what a carb is, so, I think I am on the right track too.
I love the sound of a big block V8.
 

cstew47

Full Access Member
Joined
Feb 7, 2015
Posts
181
Reaction score
120
Location
colombia
First Name
craig
Truck Year
1978
Truck Model
K5
Engine Size
383
Okay guys. With all of the good feedback, I owe you an update. I finally found a guy here that understands carbs. I bought a rebuild kit and a tune up kit for the 1405 (the third one). He said the stalling problem was over jetting. he installed the correct jet and needle sizes. Three different guys worked on the carb and the car sat for more than two years without running. I just got it back today and it looks like the problem is solved. I'll know within the next day or so. It finally feels like all 400 horses are working together through that 4L60 and the 4.56 gears.
 

cstew47

Full Access Member
Joined
Feb 7, 2015
Posts
181
Reaction score
120
Location
colombia
First Name
craig
Truck Year
1978
Truck Model
K5
Engine Size
383
Okay guys. With all of the good feedback, I owe you an update. I finally found a guy here that understands carbs. I bought a rebuild kit and a tune up kit for the 1405 (the third one). He said the stalling problem was over jetting. he installed the correct jet and needle sizes. Three different guys worked on the carb and the car sat for more than two years without running. I just got it back today and it looks like the problem is solved. I'll know within the next day or so. It finally feels like all 400 horses are working together through that 4L60 and the 4.56 gears.
 

akchevrolet

Full Access Member
Joined
Sep 22, 2016
Posts
458
Reaction score
534
Location
Texas
First Name
Andrew
Truck Year
1987
Truck Model
R10
Engine Size
305
Post a video if you can would love to hear that beast
 

cstew47

Full Access Member
Joined
Feb 7, 2015
Posts
181
Reaction score
120
Location
colombia
First Name
craig
Truck Year
1978
Truck Model
K5
Engine Size
383
Post a video if you can would love to hear that beast
Okay, I'll post a video as soon as I get it back from the shop. Apparently I put a stone through the rad. I'm getting it welded up.
 

Latest posts

Forum statistics

Threads
41,849
Posts
903,439
Members
33,362
Latest member
Dhatch84
Top