Hey I have a problem. I was putting a new manifold gasket on my 91 laser rs turbo. and I noticed one of my 450s are cracked down at the bottom where it goes in to the head. I was wondering if a 2cnd gen 450 would fit right in or was the resistance different. Also If anyone has any 1st or 2cnd gen turbo injectors for sale that i can buy as quick as possible!!? Thanks