4 bbl intake question
Does anyone have a 4 bbl intake (Offenhauser or other) for the Cosworth? I am thinking of running a Holley 390. Currently running 45 DCOEs, but these are marginal on the low-end and want to get improved streetable performance. I know these were around in some limited form years ago, but I have not seen one recently.
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I have a after market cat and fperformance muffler but would like to find a good exhaust shop to get that 2.5 diameter pipes..I had my motor dyno tuned when I rebuilt it and it was about 133 or so at the crank .. not sure how that translates with exhaust and drive train attached . I read you lose about 15 to 20 %..always a work in progress I guess .