Longer primary tubes give you better
Low & mid range, short primaries for top end power
Jg
Sent from my iPhone
> On Jul 12, 2016, at 8:26 AM, Mike Harmuth <ofracer@gmail.com> wrote:
>
> I've been running Tri Y headers on the Spitfire for years, I heard they help
> with low to mid range power (yes or no?). I see Checkered Flag racing has
> obtained the fixtures to to start producing Stahl headers again. I know the
> car had a Stahl header in the past and it has the bell housing is notched,
> the frame flattened out but the former owner has passed so I can't ask him
> anything.
>
> What should I expect from the long, equal length header, just more top end
> with less low to mid power or better performance overall?
>
> 1296 engine with the Kastner books mods to the heads, twin SU HS4s.
>
> thanks
> mike
>
>
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