For the original OP's question...
Correct “Street Hemi Orange” engine paint for 1970 is: Ditzler EQE-60626 w/ 25% Ditzler DX-265 flattening agent
and Uncle Tony's Garage has some very good guidance on prep and paint of the engine block.
This thread discusses the paint and application. Example...
@Challenger RTA
The 1971 340 engines (GW340 prefix at driver side front cylinder head deck) built at the Windsor Engine Plant in Canada were painted Street Hemi Orange.
340 engine assembly shifted during the 1971 model year to the Mound Rd Engine Plant in Detroit.
All Mound Road 340's (GM340...
I had the same thing. The TTI connections are extremely tight. I found that carefully tweaking them with an exhaust pipe expander made for an easier installation.
AutoZone’s free loan-a-tool program has a very nice kit to expand all sizes of pipe.
Once together, just use the stainless band...
That would be a whole other discussion on anti-slosh, tank venting, ECS, etc.
The picture I posted is the new tube.
The OP asked, “Is this dent in the fuel filler tube supposed to be there?”
The answer is, “Yes.”
That filler tube looks nothing like the 1970 fuel filler tubes. I am not even sure that fits an E-body since it is so radically different.
Below is the correct Barracuda/Cuda filler tube that is sold for all 70-74 Plymouth E-Bodies.
Occam's Razor
What are the odds that a "dent" that is perfectly symmetrical both vertically and horizontally would occur on the fuel filler tube in the exact same location on tens of thousands of Barracuda/Cudas?
And, that the "dent" would occur in a very protected area with factory...
Many are attempting to get max $ since they see Mecum and B-J E-Bodies getting higher sale prices this year.
The auction sales I have seen were much more desirable models and were in much better condition.
Example: Loaded red Challenger T/A with factory louvers (non-matching T/A engine) at...
Not my car. There are lots of photos on the provided link. It could be a northern rust bucket for all we know. These consignment places negotiate so it could be had for far less $.
Most presentable Cudas can go for $60k plus so caveat emptor.
Not my car. Just posting for anyone interested in buying a 1970 Cuda 340 located in Ruskin, Florida at Gateway Classic Cars of Tampa.
Ad says asking price is $90,000.
LINK
VIN BS23H0B171449
Sand Pebble Beige (BL1) with H6T5 - Tan interior with C16 - Console, D32 - Automatic, A62 - Rallye...
Show some pics of this "brown" interior. Are you changing a factory T7 - Tan interior to X9 - Black?
I love the rare non-black interiors. Properly done, these are very desirable.