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Well silly, it's because they are..

Not opinion, just a fact..



Chris..



does anyone have any facts on this or us it like saying one oil is better than the other from engine failure.




Just look at the valvetrain on Pro Stock and Comp cars.

I'll bet you see Jesel or T&D.

And I'll also bet you wont find any Harland Sharps on those engines.. That to me, would be fact..



Chris..



You may see Wilfords stuff and Jesel, but I don't think T&Ds stuff is in PS. That being said, T&D is a great rocker and is on a lot of very fast cars.