Reply to "What carbs are you using on your Cleveland motors?"

rapierMember

Started with a Holley 4778 700cfm double pumper on an Edelbrock Torker manifold.
Ran well - but only did 8mpg (US gallons).

Then tried a Holley 4160 1850S 600cfm vacuum secondary with a 4150 conversion kit to replace the metering plate with 'proper' jets.
This improved the gas mileage to 10mpg and felt the same on the road. Dynoed at 310bhp.
Had to lean off the primary and richen up secondary - now on 64 primary and 68 secondary.
I also removed the cold-start mechanism completely.

I've now changed manifold (to a Performer) and I need to start over with the jetting.

It's not easy to find a Cleveland and Holley expert in the UK - they are few and far between.

2/28/062:45 AM

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