i have an 05 Monte LT, its stock. I plan to do a top swap this fall. i need to know if i will run into any problems with it being an 05 L36. i have read some where that it is kind of a mutt in the sense that it has L27 internals, also all the top swap kits and pcms don't seem to go threw the 05 model year. i have started to assemble the peaces iv got the heads, intake, and harmonic balancer off a 2000 L67 and want to be sure it can be done before i invest any more than the 70 bucks i have into that. any help advice would be greatly appreciated.