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hammondite · 04-19-2024, 02:11 PM

Howdy all.

I have a 30 Model A I bought off an estate a while back. The owner was going for a 50's 'ish' build.

Why am I here rather than the Model A forum? The car came with a 48 truck flathead V8 (that's why i bought it) and a Speedway brake/clutch master cylinder kit. Which has a power master cylinder.

Question - Can the flathead provide enough vacuum for the master cylinder? If so, are there any tricks/mods needed to do so, or can I just run the vacuum from the intake manifold?

04-19-2024, 02:11 PM	#1
hammondite Junior Member Join Date: Sep 2022 Location: North Coast, Oregon Posts: 28	Flathead 8 and power brakes. Howdy all. I have a 30 Model A I bought off an estate a while back. The owner was going for a 50's 'ish' build. Why am I here rather than the Model A forum? The car came with a 48 truck flathead V8 (that's why i bought it) and a Speedway brake/clutch master cylinder kit. Which has a power master cylinder. Question - Can the flathead provide enough vacuum for the master cylinder? If so, are there any tricks/mods needed to do so, or can I just run the vacuum from the intake manifold?