Originally Posted by FC3Cturbo

If it is a jdm engine without a rebuild and only has 23k it's not worth it. Even though it's a 13b-re block it's still the same as an s5 block, probably has 140rwhp without turbos, just bolts up different and can hold more power. I can guarantee that if it is not ported, my stock port, stock turbo vert running 8psi would walk all over it. For $3700 you can usually get a nice turboII, For me, if it's not a 2000lb FB a non-turbo engine will just not be fast enough. My opinion is that his car is $700 too much, granted he probably spent $3000 putting that car together but nobody will ever get their money out of their modded FC. I'd offer him $3000 at the most (which I'm sure he'll feel offended.)