Going for very low 10’s to high 9’s
Pretty sure a stock block and a stock head are two different things. Aside from a stroker kit, building a block doesnt make a car faster, it secures the car under high boost and makes it more reliable so I can understand someone not building there block if there on a budget. A head however provides for a high revving motor and top end power which would add speed.
Last, on a stock block, I bet that car doesnt make it 10 times down the track withot blowing up… If im putting all this money into my car, I want to make it reliable hence why im building both and the block and the head.