When installing the Zex kit, what other types of mods would need to be done (ignition, fuel, etc.) if any for a 55 shot? Just a lil curious

 

you should be fine with a 55shot. You might want to pick up a A/F meter to check to see if your running lean. But aside from that you should be fine. If you going to be doing a 65-75shot on your zex, your going to need a bigger fuel pump.

 

also with going with a 65-75 shot,... you need colder plugs

i recommend the zex tri plugs