Hi Kev,ok so engine wise I've got stage 1 and 2 DNA filters,snorkel removed,Kev fuel mod,4mm oversize headers and Mivv carbon cans and adjusted CO up to 20 from 13 and I'm loving it but would like a bit more bhp without spending a fortune so my question is,is it worth putting a stage 1/2 cam in without modifying the head ie,gas flowed excetra,with a cam would I really need to get a PC to get the most out of it and what make of cam do you recommend,is OTR's cam any good,cheers.