Hey everyone im just curious is anyone else in here building a buick nailhead? also what kind of power can i expect from a .060 over offy dual quad 401 nailhead running 10.5:1 compression with pocket ported heads a .480/.480 lift and 224/224 duration hydraulic cam with 1.95 I and 1.55 e valves expelling gases through a set of 1 5/8in headers into 2 1/2 in pipes with flowmasters? my carbs are 600 cfm edelbrocks. any answer would be appreciated thanks.