I like it. I might would take Greg's advice and make it a 540" w/ a 4.25" stroke and 4.5" bore. The cam is a little on the small side, but it'll be a good street motor and make gobs of power. CHIP

CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax