Uploaded March 2025 | Updated September 2026, 3 weeks ago

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We're one step closer to running the 255ci Mercury Flathead V8 on the dyno... Stay tuned!

Shoutout to our friends at @SBIValvetrain for always having us covered on quality valvetrain! sbintl.com

Shoutout to Hussey Performance for hooking it up! husseyperformance.net

Order merch to support builds like this: bunkerbranding.com/pages/jamsi-online

Become a channel member: youtube.com/channel/UCN0rAGKAOHjPLCVwvKPLX9w/join

Instagram: @jamsionline
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Websites: jamsionline.com
jimsmachineinc.com


For business inquires: Contact info@jamsionline.com

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