How much horsepower

I can back that up too AJ. 275 bfg ta on my demon, 400 hp 340. 4k launch they spin maybe 15-20 feet then hook. They shift the car maybe 6" to the right but it is always predictable. Dont get that loud tire screech either, unless i grab 2nd or 3rd lol

Not so fast there brother!
the 295s are great sliding tires;
I never said they were any good for traction,
Cuz I don't think they are,especially after a few thousand miles go by. Then I can spin 'em forever.
When brand spanking new, they are better, but only a little better,lol. They still often spin to the top of second gear which in my combo is 85 mph.You might ask, how can he possibly know that, since they are no longer smoking or screaming? Well the answer is easy. I have a GVOD that I use as a splitter. When I leave the line, I put the tack on 7200, and keep it there all the way thru first, first-over and then to the top of second. So either they are spinning, or my clutch is slipping. Since there is no clutch smoke or stink, I'm going with tirespin. When I split into second od at over 80mph, my rpm will be 5600, right about where my 230@050 cam powerpeaks. So, I think I could spin 'em some more.I just don't care too.
I was only extolling their other characteristics,lol, None of which make them particularly desirable,for most guys; I was more or less yanking diymirages chain,kindof like I am now yanking yours, please forgive me,lol.

But since you seem to be able to make them stick, what's your secret?Wait let me guess, do you have a vacuum secondary carb!