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| | | Forums66 Topics128,076 Posts1,056,008 Members48,433 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Sep 2008 Posts: 293 'Bolter | | 'Bolter Joined: Sep 2008 Posts: 293 | On a 250ci engine, in a daily driver '57 Suburban, with a TH700R4 trans and GM throttle body EFI (but otherwise stock engine), which is the best intake, Clifford or Offenhauser?
Torque rules!
'57 Chevy Suburban; '70 Chevy Impala.
| | | | | Joined: Nov 2002 Posts: 1,002 Shop Shark | | Shop Shark Joined: Nov 2002 Posts: 1,002 | The thought had been that the Offy was a better street manifold, because of smaller runners. The smaller runners provide better low end, and mid range torque. Recent dyno tests on a 292 indicate that this may not be the case, for the 292. There are dyno tests in the planning stages for the 250, but it will be a few months before the data will be available. IMO the Offy would still be a safe bet for the 250 if your not looking at high RPM.
Larry
I don't own a vehicle that isn't old enough to drink.
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