426 stroker, is it reliable?

So by managing it you mean not opening the secondaries.....?
I have had 3.25DRs on my Formulas S as well. I have to manage the secondaries too; or short-shift it.Especially in first cuz I have a 10.97 starter gear. Second is better but it's good to 80 plus mph, with 3.55s. After 55 or so the 3.25s start to settle down, and that is about 4500rpm, probably a good bit past peak torque.Sometimes they will spin right through second. I think I will not buy BFG DRs again. But they sure look menacing in there.
Since my 3.25s do so poorly on the street, I run 2.95s. Theses spin easier and longer, but they are 1/3 the price, and I can't make 'em rub no how.So now I can slide the car almost anywhere, anytime. I can pretend I have an old stock-car. No I don't slide it in traffic, silly. I pick my spots, and times. And I am always prepared to walk; I ain't too old to walk.And my chassis has saved my azz on occasion. A little clutch now and then straightens her out pretty quick. The big thing is to not panick, when things are not going as imagined.
Now Ima thinking If I did have 600#, I'm too old to handle that, I got my hands full with what I got. Plus 600 would probably wanna twist my chassis up, so more money would need to be spent.