Its an lt1 383? Never seen anyone do one before.. In the lt4 kit what are you going to get? Heads cam? Because if it's a true 383 and someone spent the money doing it, it should have a set of head and cam set to flow correctly, so changing it might actually result in a loss of power by dropping the c:r and changing the rpm curve..
Just a heads up
And most n/a built stroker kits are done with a little higher compression as well to add more power without f/I so if you do a supercharger be careful I would hate to see your piston on the outside of the block!
That's said nice car dude, nice to see people with these cars instead of mustangs too