We never had a problem. Edledbrock intake, holly carb, Modified MSD with Acell stuff, Hooker headers. It actually was a Canadian GMG with a 6cyl engine, 411 and positrac rearend. I don't remember what it ran, 1/8 mile track close to our house, 20 mile. Lonestar Motor Sports track. I'll have to check with my son on times and such... It's been 6 years or so ago. Us old farts can't remember shit...
We always thought it was funny of the warranty... 3/yrs 36000 miles. WE would have had to thrown it back to stock if we blowed it up.
Well I got to looking things up. It was not a Target Master engine, at least they didn't call that anymore. It was the 350 290hp crate engine... My bad. 24 month warranty. It was basically a long block and we add the rest. I didn't find receipt on the engine, just some of the other stuff. I bought some stuff from autoz@ne and still have that. Life time warranty stuff.I cheated, my son worked at one then.
I do remember that GM even had target master automatic transmissions. I know we put a few in engines back when I did that stuff for a living and don't remember any coming back, that would have pissed me off as I worked on commission . The reman engines we used were real good and they stood behind their engines. But some people didn't want a reman engine.