The coils aren't going to do anything for you.
I am not sure why someone would tell you to swap to 6.1 rods. They are only needed if you upgrade to an aftermarket cam ground on a 6.1 base circle.
With that said, there are tons of mods out there you can do. Personally the two best I have done are cam and converter.
Last edited by TRO14; 08-23-2013 at 08:00 PM.