This is a pretty good channel on You Tube, Jim’s Automotive Service. The 383 SBC posted some decent numbers after they removed the FI Tech injection and put a carburetor on it, another nail in aftermarket injection’s coffin. The oil leak diagnoses and repair was pretty slick. I thought the video would paste, but just the pic did.
Jim's is a great channel! He goes into detail about how many automotive machine shop processes are done (balancing, crank grinding, etc.). It's nice to have a better understanding of whay will be done &/or what questions to ask when dropping off a block at a machine shop.
One of their videos on John Deere tractor heads popped up on my feed. I ended up going back and watching a few more of their videos. It's a great channel on YouTube.
Once they fixed the exhaust, a leak upstream of the O2 sensor and added 18" past the O2 sensor it picked up 4 HP and 2 lb-ft torque over the Holley . The EFI will also learn a bit more.
