You can definitely try it.....but this carb on here is clean and bowl is already off.......throw some 68's in it.....be just as much work and you are starting with a known good part.
You will need the drop adapter for the Edelbrock fuel feed.....

Jebby

 

The jets installed in the carb were 65's so we went up to 69's. It felt better but the stutter was still there so now we're going to the 72's after it cools down a little bit.

 

Imo, I would stick with the Holley.

 

I hope I’m not saying something that has already been said, Several of the first posters mentioned vacuum leaks. I don’t see where that possibility has been eliminated in the posts that follow. Keep in mind, cylinders 5 and 8 share the same intake runner. Sometimes on Vortec type manifold gaskets, one of the seals can get sucked out and cause a big vacuum leak.

 

Problem solved. The 72's in the front eliminated the stutter. When we went to put the 80's in the rear, we found the rear jets were only 68's, not the 76's the manual indicated. The thing pulls really well now and runs smooth at cruising speed. Thanks to everyone who offered suggestions and knowledge. I know I learned a lot!

 

Awesome!

Jebby

 

As a wrap-up to this thread and an explanation of my comment in the original post about being highly frustrated with this car, here's the history I've had with it since I acquired it in February 2017.

In preparation for the 2017 driving season, I set about fixing the few minor things the seller identified that needed to be done and arranged to have the car aligned. During the alignment, the tech noted that he couldn't do the rear alignment because the trailing arms and shims were too rusty for him to adjust. I ordered rebuilt trailing arms and shims. When they arrived, we started to install them in my shop. The passenger side went OK, but when my tech and the mechanic whose shop adjoins ours pulled the driver side they noted significant rust up into the frame and shock mount that I hadn't been able to see when I inspected the car before buying. The damage was enough that I elected not to drive the car any more than necessary that season.

Over the winter of 2017-18, I had Ron's Auto Restoration (a Corvette restoration shop) pull the body and replace the frame with a new one from Vette Products. By the time spring rolled around, the job was complete and I had the car back, so I started driving it again. Not long after I started driving it, I noticed some leakage from the left rear brake cylinder so I took it back to Ron's for them to take care of that under warranty. On the way up there, I spotted blue smoke behind me and started paying close attention to the rearview mirror. Sure enough, the motor was blowing blue smoke. Once the brake issue was rectified, I took the car back to my shop and we pulled the motor.

So now we're in the 2018 driving season and the car has no motor. I had known it wasn't the original motor so I started researching and pricing crate engines as an alternative to rebuilding the one we pulled. After tearing down the motor, we discovered it was a 400 from a 72 Impala and it had cracked rings in two cylinders, as well as scores on the cylinder walls. It had previously been rebuilt and bored out, so it was pretty much junk. Now the car was laid up waiting for us to have time to install the GM crate engine I ordered.

While contemplating the engine install, I decided that, "while I was at it", I might as well upgrade the 4-speed to a 5-speed. With advice and help from this forum, I got a rebuilt transmission from Anaheim Gear in California and added that to the scope of work. It took us almost all of that season before the engine and transmission were installed and street-worthy.

In April 2019, I was driving the car to my shop to get the windshield wipers working. While cruising at about 50 MPH, there was a loud bang and the engine rev'd way up. 5th gear had broken loose and I was effectively in neutral. Using the transmission as a 4-speed now, I drove the rest of the way to the shop (about 3 miles). It turned out that the clip that keeps 5th gear in place had come off, so the tranmission had to come out, have a new stronger clip installed, and then get put back in the car. All of that had to be scheduled around our customer work, so it took several weeks.

By June, the car was back on the road and that's when I was able to drive it enough to start noting the stutter, so back into our shop it went. You guys know the rest of the story. But it's now late summer of the third driving season I've had the car and it's just gotten everything fixed. It has a new frame, new brakes, new front and rear suspension, new motor and transmission - it's basically a new car at this point and I should finally be able to enjoy it the way I'd hoped to when I first bought it. There are still some things to fix (the odometer doesn't work, the temp gauge suggests the engine is never going over about 130 degrees, etc.) but nothing that interferes with taking it out on nice days.

If the universe is kind, that's how things will stay. If it's not, let me know if you spot a burning garage I can park it in.

 

Too funny, I wondered about spark plug colors, glad you found it. I can understand your last statements, my 427 L71 to 460 upgrade has been a three year semi-nightmare (doing all mods myself), in the fall of year two I was ready to roll it out of the garage and put a match to it. It's better now, I no longer have a schedule so problems irritate me a lot less.

 

I have the same engine and same issue. Have you had any luck fixing the issue?

 

Yes he did ... go back and read OP's post # 45