JAK Performance

JAK Performance

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Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from JAK Performance, Automotive manufacturer, 8271 Faithful Drive, Mansfield, TX.

JAK Performance is a company committed to the development and production of carburetors and intake manifolds for the performance automotive enthusiasts and racing comunity.

06/12/2026

Following a six-month period without adequate electrical power in the new shop, my electrician successfully restored sufficient power to operate my machinery. I am now creating tool designs to initiate machining for my next three Tunnel Wedge manifolds: 351W, 302W, and BOSS 302 3V.

06/08/2026
Photos from JAK Performance 's post 05/31/2026

I have also finalized work on the second installment of a series of manifolds designed for SOHC 427 engines, featuring a single-plane design with a Holley 4500 Dominator fl**ge.

Photos from JAK Performance 's post 05/31/2026

I have modified the runner configuration at the plenum's port entry, thereby increasing the plenum's volume.

Photos from JAK Performance 's post 05/24/2026

I have commenced a new project for a client to design and manufacture up to four distinct manifolds for the Ford SOHC 427 engine. The initial manifold, a single-plane Tunnel Wedge, has been completed.

05/16/2026

During development of the Clevor 3V Throttle Body injection system, I determined it would be beneficial to provide the customer with a choice between utilizing a wet or dry manifold.

Photos from JAK Performance 's post 05/16/2026

At the customer's request, I have updated my 351C stacked 58mm manifold to accommodate Throttle Body Injection compatibility. I will add the injectors and fuel rails as we progress.

Photos from JAK Performance 's post 05/14/2026

Meanwhile, at the behest of a new client, I have resumed work on a project. This entails developing a Throttle Body Injection system designed for 351W blocks equipped with Scott Cook 3V cylinder heads. There are a few more specifics to finalize, but the project shows considerable potential.

Photos from JAK Performance 's post 05/14/2026

Manifolds are stacking up waiting for the power company to get off their shovels to bring the required power to the new shop. We’ve been waiting for four months. Quite frustrating!

Photos from JAK Performance 's post 05/07/2026

I am pleased to announce that four new manifolds, designed specifically for the 351M/400 and 9.5" Clevor engines with a 3V port configuration, have been sent to the foundry for quotation. The manifold designs include: 1) Holley 4500 Dominator, 2) Holley 4150 fl**ge, 3) 2X4 Tunnel Wedge, and 4) Clevor Holley 4150 fl**ge. Production will include at least three units of each design at a price of $2250 per unit. Interested parties are invited to express their interest and secure a place on the production list via private message.

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8271 Faithful Drive
Mansfield, TX
75167

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm
Saturday 9am - 12pm