Working a 4 litre head and what cam to go with it?

[Felony]

I plan to fit a 4 litre head to my 3.9 in my ea soonish ( Just got a eb head from Gubas at a nice price, cheers mate ), is it a str8 bolt on affair? im pretty sure it is...

I have some crow valve springs ( 125lbs ) to put on it and im thinking bout some porting and a shaving ( 40thou? ) for higher compression,
How much do you guys recommend i go with the shaving on the head?
And im wanting to get a wade cam, 977b or maybe 1521 cause i will have the better springs but i hear the 1521 i might need chip for ecu?
Cars a stock manual with extractors and exhaust atm........
Cheers lads