Your existing ECM is good to go.  Jump A to B on the data connector to put the ECM into maintenance mode, set the timing to 10 degrees BTDC, remove the jumper, and you should be all set.

Hey guys, I’m new on here. I’m having a serious issue with my brand new motor rebuild on my 2000 Malibu Sunsetter. I bought the boat about 6 months ago, knowing it had a cracked block from not getting winterized properly from the original owner. Brought it home and immediately pulled the motor, motor then was taken to my mechanic who did the tear down as I bought a new 5.7 Chevy long block. With gaskets, new heads, oil pan everything, the crank case and cam shaft numbers were matched up from the old motor and cam to make sure everything would be in sync with the new block. Got the new block and my mechanic started doing the re and re (tear down and reassemble), also got new manifolds and risers so everything is new. All the internals of the motor were perfect just the block was shot. So that brings to my issue, this mechanic is an automotive mechanic and doesn’t have the computer diagnostic hookups for the Indmar monsoon engine to do the initial first start on the engine, apparently the fuel mapping and timing has to be programmed with a computer/scanner? Is this right? I’ve tried all the dealers local close to me and nobody wants to touch it as they didn’t do the work. I’m up in Canada, Vancouver British Columbia. Pls any help would be amazing as it looks like no body is gonna touch this motor as of right now.

There are many things that can affect the lifespan of fuel lines.  Exposure to UV, ethanol, or other chemicals is a factor.  The consensus tends to be somewhere around 10-15 years max for replacement, but anything that is visibility weathered, cracked, damaged, or abnormally stiff/soft should be replaced.  The quality and manufacturer might also make a difference.  It may not be a coincidence that the failed fuel line I replaced had "Made in Malaysia" printed on it.

Dang, gonna miss you for sure.  Best of luck in whatever is next.  Hope you at least stick around TMC!

Congrats on the new job!!  

Now...can you get me the secret recipe to the frosting at Cinnabon or not?