First, put the truck and it’s modifications in the signature line would help.
The questions I asked would be first to answer, then go from there. They weren’t rhetorical.
All out race means low weight, high power. Have you got rid of the steel front clip, doors, bed yet for fiberglass or carbon?
Still have a frame and suspension that is built to handle 2,000 lbs in the bed and travel rough roads and flex, or is that gone yet and only have a 4 link to the spooled rear axle hung from all tube frame?
Still have glass windshield with wipers, its motor, wiring and controls? Or plexi and all the wasted weight gone?
On the engine: balanced, lightened, chryoed, coated, nitrous, propane, supercharged, turbo, twin turbo, wmi, the heads: ported -polish -300 grit surface-dimpled-lyned-
pistons: dimpled- cut- type- compression- lower end torque vs high rpm or exceeding high rpm-
Like, there is so many ways of doing this there are literally thousands of ways to build 1 engine. What gearing you want and if you focus on hole shot or top end speed determines how everything gets set up.
I had engines that lasted 1month between needing rings, bearings, and reseating valves from egt cooking everything until I started getting free engines from gm to do it with. Then I had to quit improving the obvious stuff so they could get test info on what breaks and how. I would sometimes eat 2 engines a night pushing twin turbos and nitro propane back in the 90’s when no one heard of a diesel at the track.
It is all one math equation:
How fast you want divided by how much you spend equals how close you get and for how long.