What kind of idle can I expect with this camshaft?

This COMP Cams camshaft is designed for bracket racing and limited street use, and it produces a radical, rough idle. This is a common characteristic of high-performance camshafts intended for maximum power output.

What transmission and torque converter are recommended for this cam?

For optimal performance, this camshaft requires a torque converter with a stall speed of 3500 RPM or higher, or a 4-speed manual transmission. This ensures the engine stays within its powerband during operation.

Is this camshaft street legal in California?

No, this camshaft is not CARB approved and cannot be shipped to California due to emissions regulations.

COMP Cams 32-235-4 Hydraulic Flat Camshaft | Ford 351C 351M

Name: COMP Cams Camshaft FC 305H-10
Brand: COMP Cams
SKU: comp-cams-comp-cams-camshaft-fc-305h-10-t14-4391608
Price: 319.35 USD
Availability: BackOrder

COMP Cams Camshaft FC 305H-10

$319.35

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

COMP Cams 32-235-4 hydraulic flat camshaft. Designed for bracket race and limited street use, offering a radical idle for performance builds.

Key Features

Fits a wide range of Ford and Mercury vehicles with 351 Cleveland, 351 Modified, and 400 Modified engines.
Hydraulic flat tappet camshaft with 253/253 duration.
Designed for bracket race and limited street use applications.
Requires a 3500+ RPM stall torque converter or 4-speed transmission.
Best suited for 10:1 to 11:1 compression ratios.
Produces a radical, rough idle characteristic of performance cams.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

Starting with a 253/253 duration on both intake and exhaust, this COMP Cams hydraulic flat tappet camshaft is built for serious performance in Ford 351 Cleveland, 351 Modified, and 400 Modified engines. It’s intended for bracket racing and limited street use, where a radical, rough idle is part of the package and expected for this level of performance. You’ll want to pair this with a 3500+ RPM stall torque converter or a 4-speed transmission to get the most out of its powerband.

This camshaft is designed to work well in heavier vehicles that need good torque, especially when running around 10:1 to 11:1 compression ratios. The aggressive cam profile means you’ll hear it working, and it’s not meant for quiet cruising. It’s a well-built component that’s a popular choice for those building a dedicated race car or a street machine that prioritizes raw power over a smooth ride.

This part fits a wide range of Ford and Mercury vehicles from the late 60s through the mid-80s, including popular models like the Ford Mustang, F-150, and Mercury Cougar. Make sure to check the full fitment list to confirm it’s the right choice for your specific application.