For a streeter, the front part of the spring is just a link. As long as it is not winding up and releasing, sucking up energy, and giving it back as wheel-hop like Chebbys do, then it's doing it's job, just being a link.
The secret to traction with mega-torque, on the street, is to get the front weight to transfer to the rear and to simultaneously get the rear to rise up against the incoming weight, which forces the tires down. It starts with the tires tho. If they don't bite at least some, then there is not much chance of the front weight coming up.And the rear rise by itself is not enough even for a 360. A lot of this, perhaps most, is driver-technique. I fear street 255s are just not gonna do it.
So I suppose the place to start is with the type of tires you install, and you need a traction aider, and I dunno how yur gonna get the 440 to lift itself. I'm not the best guy to talk to, cuz I only ever one-time spent the time and money on weight transfer, on the street. I used slapper bars and 90/10 front shocks with SuperStock-TYPE springs and 3-way adjustable shocks in the rear. It was a lotta effort with very little gain.And bunny-hopping got old in a hurry as did the lousy cornering. So I went away from straightlining.
This doesn't mean you can't still have fun;
my car 60fts in the 2.2 to 2.4s and is mega-fun. But I wouldn't race anybody from a stop,lol, cuz I know better. Instead, I take passengers for a spin, and help them unload their breakfasts. But yaknow, I get few takers these days, and I'm good with that, cuz they can't always hold it until the ride is over.. ......... ok so I exaggerated a little, only had one barfer,lol. But I had some passengers barf bad words at me.
There's more to fun than straight lines.