IS3 cam with gen5 and E85 would be a fun build forsure. That was my 1st plan then by the time you start adding in cost of heads, injectors, double roller chain, 130# springs, I think for the money a turbo setup gets to be a seriously close decision considering everthing thats needed to run that IS3 cam and get the most out of it and still prolly make 350whp. Or just do a turbo and make 350whp easily. The turbo just leaves room to make way more HP down the road.