Which Header Size?
#1
Which Header Size?
Purchasing a full length header for my 1972 Cutlass STOCK bottom end Olds 350. Any recommendations on which primary and collector size to use?
1 5/8 primary X 2 1/2 collector OR
1 3/4 primary X 3" collector
Using E Performer with Holley 750 3310.
1 5/8 primary X 2 1/2 collector OR
1 3/4 primary X 3" collector
Using E Performer with Holley 750 3310.
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