Q 1. have many ppl used the jim mock DEV 4 kit. He claims it makes 160rwkw.
Q. 2. has anyone made 160rwkw using another brand cam, springs, exhaust and head mods that come up cheaper than the $3200 (supply only) that jim mock is asking for his kit?
Q. 3. does anyone know the approx profile of the cam in the DEV 4 kit?

IN MY OPINION, JMM isn't that respectable... Lots of people here, and others I know don't like the results. problems with lifters and valves, and the use of bodgy parts (someone here paid for a billet cam and got a reco steel, then when he went back, JMM said it was over a year ago and to f**k off)

I say buyer beware, I'm not trying to bag the place, its what I've heard...

As for the spec. You'll have to find someone here who's had the cam upgrade and then taken it out for a spec test. JMM won't release the spec!

Have you tried one of the cam sponsors here? they do good s**t! Lots of experience and happy Modder results

I have seen a EF wagon that pulled 211 rwhp with a home ported head and a big cam (don't know what brand) and a reasonable exhaust.

Get a decent Tune (capa chip or similar) with a decent cam ( wade seems to be the go), decent exhaust and extractors and you should get close.