I have a 355ci LT1 I'm trying to build up to around 435+ hp for my impala ss. So far my intake and aluminum heads has been ported. Also I'm using Lingenfelter double valve springs and AFR High Rev lifter Kit with GM-847 camshaft (234/242 dur @ .050 lift, .539/.558 lobe lift with 1.5 rockers, 112 LSA). What do you think my horse power would be????? Should i consider making it a stroker motor?????