Lots of great info posted. Dad n I did his 273 but not to the extent ToolManMike did. We used factory 4bl intake but recently swapped to LD4B and I did my own diy port/smooth job on heads. Eddy 600 cfm.
Comp Cams cam lifter timing kit with springs and upgraded to dbl roller timing chain. Was the last car and engine Dad n I worked on.
Prayers for your family.
