cant seem to find a definitive answer for this in a search so please excuse me if this has been asked before

i have a L8 ecu with wasted spark (msd unit)

apart from the obvious job of adapting the wiring from a coil pack to COP units so that 1&4, 2&3 are wired together can i run coil on plugs without any alterations to the ecu?
does the fixing bolt for the Yaris COP just need a hole/thread putting in the standard cam cover or does a bit need welding on for it?


Toyota Yaris vvti seem to be the popular choice, straight or angled plugs? or is it a personal choice thing?

thanks

simon