Biggest Slapper bars I've ever seen.

[Fast67VelleN2O]

Recently picked these up. They are orange under the paint. They're huge. Rubber bumpers front and back. Chevy mounting pattern. Any ideas? Size comparison with a small block Chevy valve cover.

[whitetop]

Kool Fuel made bars like these and a few other co's.

[markjohnson]

Pretty sure those are MAS bars.

[67 Nova Boy]

[Fast67VelleN2O]

The catalog traction bars look like they have open bottoms. These bars don't have that. They are completely enclosed.

[PxTx]

Spring plates seem identical. Catalog is 1971, so maybe a later issue bar?

Funny, the hardware reminds me of the Ansen competition bars.

[SS427]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 67 Nova Boy</div><div class="ubbcode-body">
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Richard Charbonneau's car. Big time racer at Minnesota Dragways and North Star Drag Strip in the 60's and 70's. Awesome paint on this car.

[Day2_69Z]

Its great to have technical info for all to share in

[RichSchmidt]

I plan on adding a extention to the rear of my slapper bars on my high 8 second 73 Fire bird. It hits too hard and lifts too much in the rear. I was thinking of extending the bars back a foot and running a plate on top of the springs with thread rods to connect it to the bars. I would use nuts on not sides of the plate ad tabs on the bar and adjust how far the plate sat over the spring. My goal is that when the front of the bar hits the spring and the car starts to lift hard in the back,the rear plate will hit the spring and start pulling down on the back of the spring to initiate weight transfer and stop the car from lifting in the rear. I would leave enough space over the plate that the front of the bar could hit and happy force to the tires and then the rear plate would hit and initiate more weight transfer. Right now I am limited on how hard I can leave,not b traction,but by how hard the car leapfrogs in the rear. I want to go blazingly fast on 11.5&quot; wide DOT tires in a 3400# car with old school slapper bars.

Here is what my car does now. It is limited to high 1.30's in the 60 foot,but mostly mid 1.40's.

[Day2_69Z]

I can relate to how bad you want those 60 ft times to plummet ......

The Pro Nitrous Camaro turned .967 - .964. &amp; .965 last week in St Lois......and Creates a much Quicker ET...... good luck to you