I eventually found that file, Thank you. I also did a little exploring and noted that there was a FASA T-6 Racers Complete Package is a re-work of the original 'fsds' T-6 for FSX.
In it is a sound set that is not to bad. There is noticeable prop snarl when my chase plane goes from side to front of the aircraft; Which the real deal had going for it. I did a google search
for the R-1340 sound set and in some cases, it will be in another devs T-6 payware program. Some other R-1340 I think are suited for three bladed props.
Supposedly, there is a newer FDE that John Terrell (or someone) made and I'd be interested in checking that out but need to locate it. It may be in this library
not sure, I may check there and see.
Here is where you can get the fasa t6 racers
https://simviation.com/1/search?submit=1&keywords=The+FASA+T-6+Racers+Complete+Package&x=14&y=13