Recurring Crate 350 Gremlins

[geezer#99]

Originally Posted by 73kay

Take a look at it after the timing/dizzy are verified.

What are you gonna use as a piston stop?

[AcampoDave]

Earlier when I was wondering a about your clutch, I was actually thinking the problem could be the pressure plate or disc. Once, I had troubles stabbing my tranny and I let it hang there a while just so I could rest and calm down. Thing was, it wasn't fully stabbed and I ended up damaging my clutch either from the suspended weight of a partially inserted tranny hanging there by the input shaft, OR it was me being mad as hell in the sweltering heat trying to force that tranny to stab. Either way stuff got tweaked and the pressure plate broke a spring. Hell, maybe the disc got bent too I can't remember now as it was like 30 years ago. Why don't you post up some pics of the internals of your distributor when you yank it out. Maybe we can see something that may be outta whack with it.

[73kay]

Hey folks, just wanted to follow up to this. Broke down and bought a new dizzy and edelbrock 1406. Installed the dizzy and set timing to 10 or 8 BTDC, still had some symptoms. Installed the carb and voila! Truck drove like a beast. So something about the carb was causing my symptoms which included weird noise/slight vibration almost with a heavy foot and if I downshifted, some scavenging. It just ran like crap. The old carb had 1000 miles on it and always had a filter.

I didn't adjust anything on the new carb and it worked great. It's now dialed in and I am happy, but it just doesn't make sense to me. I also bumped initial timing back up to 16BTDC. Truck is awesome now and hope this helps anyone in the future.

[mattfranklin]

Originally Posted by 73kay

Hey folks, just wanted to follow up to this. Broke down and bought a new dizzy and edelbrock 1406. Installed the dizzy and set timing to 10 or 8 BTDC, still had some symptoms. Installed the carb and voila! Truck drove like a beast. So something about the carb was causing my symptoms which included weird noise/slight vibration almost with a heavy foot and if I downshifted, some scavenging. It just ran like crap. The old carb had 1000 miles on it and always had a filter.

I didn't adjust anything on the new carb and it worked great. It's now dialed in and I am happy, but it just doesn't make sense to me. I also bumped initial timing back up to 16BTDC. Truck is awesome now and hope this helps anyone in the future.

Thanks for posting the follow up and sharing the details of what finally fixed it.

[nikwho]

Glad that you got your truck running well again! It's always nice to come back to a thread after a while and hear that OP got it fixed and to close the loop on what it was to help others that find the thread that are experiencing similar symtoms.