Anyone have any feedback on them? I have a 57, and got the kit.But am having fitment issues. 350engine/tranny. Tranny hits frame crossmember,can't lower rear of trans enough to fit the new crossmember.Also,the engine must drop about an inch to line uo with new engine mount,which would compound the tranny problem even more.Hope this makes sense. Called CPP,which is where the kit came from, but they weren't any help. Any other decent fitting conversion kits available?