I got a stock reman long block.($2600 delivered)
All my old stuff (intake,throttle body,crossover ,Imrocs,,ect..)
went on to the new engine.
The old engine got sent back as a core.
No headers.
Stock springs and everything else.
I lost a cyl on the old engine with well over 100k miles due to what I was told
"a lean condition" we never opened up the old engine.
I personally think I had and still have a bad fuel injector.
New fuel injectors and a custom NOS tune will be done before she
see's any juice.
I can't confirm or deny spray had anything to do with it,but I am sure
it didn't help any with the car not running right.
I can R&R a Big Block chevy on just about any older car with a buddy
in 8 hrs time or less start to finish (just give me pizza and beer)
Just last month I removed my engine and trans from my 55 chevy in like 90 minutes flat.
This was a totally different story.
I DID NOT do the most of this job myself,but can tell you I do not want to have to go through this again (neither does my mechanic buddy).
Book time on one of these is like 20 hrs if not more.
Hope I answered everyones questions.