I did before this and he suggests a whole new kit plus upgrades which the kit alone is like 800 plus performance parts which seems a little too much for me personally.
Also as far as the cam goes LS retainers and 60 injectors good and all that is needed to be safe?
Also should I leave my heads alone or try and do some slight port work on the exhaust side since that is where you have the most gain.
LS retainers and 60lb injectors should be all you need.
You won't get anywhere close to 350whp on stock heads with a VS cam. If you want those numbers, ported heads are a must.
2001 GTP Drag Car - XPZ, Tischler heads, Upsidedown M90 IC'd, e85, Gen V, 2.3 w/ 5%OD
2005 F350 6.0 - studded, deleted, tuned
2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold