I joined and tried to list an item on there only to be rejected. It seems they only allow a certain few.
I left after no admin responded back concerning matter.
I was curious about your setup. Here is their video.
If you drop your tank and drain fill with water, you could drill safely for the return bung.
Then run the correct size line.
Besides, they advise not to have the return on top of pick-up.
I had similar issues years back with my C10 and I also assumed bad gas.
The culprit was the fuel pick-up sock that came off inside the fuel tank allowing it to suck up trash.
Edelbrock and many others recommends a non-steel core gasket for use with aluminum intakes as the low torque of the bolts does not sufficiently compress the steel core gasket.
https://www.edelbrock.com/intake-manifold-gasket-for-1965-1990-oval-port-396-402-454-b-b-chevy-7203.html
Which intake gasket are you using? Hopefully not steel core. The matching Edelbrock gasket would be good.
I would run a clean-out tap in all bolt holes and don't forget some ARP (or equivalent) thread sealer on intake bolts.
This coilover kit here is adjustable and can be put close to stock height and you could also use the watts link axle locater which is better than panhard bars which that allow some movement.
https://cachassisworks.com/p-3072-gm-73-87-c10-truck-bolt-on-4-link-coil-over-suspension.aspx...
This?
https://www.summitracing.com/parts/sum-200280
https://www.summitracing.com/search/part-type/throttle-lever-studs
Put the spring in big hole and attach it to something forward.
It looks to me like they used the whole GM serpentine kit like mine which comes with the correct water pump, ac compressor and power steering pump.
The kit includes all new bolts like you have.
I painted my WP black so it wouldn't rust.
Chain should not go around a beam it creates a weak link but may be ok with the weight of bed.
Beam clamp (or trolley) with a shackle is the correct way...
Same as above. I used Cloyes for SBC and here is the BBC version.
https://www.summitracing.com/parts/clo-9-231
There may be cheaper alternatives but Cloyes works good.
They were 316 stainless from one of the bolt houses. Only one available at the time were 6" length and could cut an inch if needed.
The oem bolts rusted badly in the middle, I doubt they were adequate.
F593C is 316 stainless.
This is the 5" oem bolt.
Maybe they changed over the counter when I bought mine from Chevy parts counter cause they were green in gm package.
I have some somewhere.
I found some extra 1991 Suburban Blazer adjusters.
The original screws were black and I just swapped them out.
I bought some from Chevy dealership few years back and they were green.
The aftermarket white ones kept breaking and I think they are plastic whereas GM are nylon.