Keep the stock motor, just regap the rings a bit and put a single turbo on it, very streetable and drive to the track race and drive home, plus you can drive it all around where ever you want. Lots of home made on the cheaper side combos on the forced induction.
Spun a rod bearing on the 340 that’s in the car the current plan is to do a 6.1 or a 6.4 swap and have good internals to add boost later on the car will also be getting a t56 around the same time, spun the bearing last weekend that was no fun