you figure a LS1 vert is heavy to start and ill be iron block with turbo setup. the manifold and turbo on silverado netted me about 60lbs right there then all tubing, Steel bellhousing, roll bar. im trying to shed as much weight as possible without compromising luxury. I got lightweight hood, fiberglass fenders, gutted nose, gutting wiring harness and etc but the hydraulics for the top weigh good bit.
With a good shortblock i know ill have plenty of power to go where i want to end up but would deffently need auto then. The 4.8 just doesnt have the usable torque for the ET im guessing so ill need topend HP to get the mph atleast. Just with your’s and talins so simple with the auto.
the added bars to be legal is a toss up to do. with 9s you need a license plus certified cage but it becomes a kick in the nutts not beign legal for the times the cars can run. Hell your combo isnt even cranked up yet. you get to about 20-22 psi and you should be into the 8s with around 150-153 mph