Match Race 1972 ~ 'Road Runner/GTX 440' vs. 'Buick GS 455'
O-M-R
'Wouldn't You Really Rather Have A Buick'
Narrow Intake Ports @ 1.16", but 'Tall Bastards' @ 2.42"
There was only a slight difference in Port Flow between the Basic GS 455/250 HP and the Buick 'Stage I' Cylinder Heads.
* 455/250 HP.......... 218 CFM @ .500" Lift
* 455 'Stage I'........ 227 CFM @ .500" Lift