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