Finally getting my father to drop a big block in his 1972 Chevelle Malibu and trying to get him into autocrossing while trying to keep it retro.
414ci, 10.5 to 1 comp, LS6 intake, 990 iron heads, .641 lift solid roller, 850cfm Holley XP, DUI distributor, and 2in primary Hedman's round most of the engine parts.
12 bolt posi 3.31 gear, TH400, and a miscellaneous torque convertor.