Quote:
Originally Posted by b-man
Manual brakes = no vacuum can = no limit on street cam duration.  |
This the Street section. No vacuum needed for manual brakes, true.... but Pontiac used vacuum to control a lot of other accessories such AC controls, vents/dampers, etc.
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.....Carl
Houston TX
1969 Firebird Conv. owned since 1987
My block is an XT which is a 350 in 1969 and a 455 in 1973. Solid roller with factory valley pan. SD Performance iron heads flowing 260cfm@600. 4spd Muncie with 3.23 posi rear end.