Nooooo, the late '80's-early '90's heads were fast-burn Heart-shaped chambers with a definite squish zone, which is why they could run stock small rollers w/ 9:1 comp.
on regular 87 octane................
Where exactly did you state that this was only regarding the 318/302 head... Yeah thought so... It's dead wrong and sure didn't apply to the 308 head. Wrong is wrong!
360 Heads were open chamber until the magnum swap over which is exactly what I wrote in context to the discussion.
