Don Hampton - http://www.hamptonblowers.com/ - makes a complete blower setup for the nailhead and Tom T. can get you some forged pistons for it. Also found - http://www.superchargerusa.com/buick_bk_street.htm#425buick
Anyone know who or where to get parts to rebuild a 1961 Buick posi-trac? I found a center section w/posi but I would like to have it rebuilt(not sure if it needs it?) to make sure it's in the best shape before installing it.