My car is a 3 in the tree, 250. I usually try to shift at 4200 when I'm trying to go as fast as I can. But WHY DOES IT SOUND SO LOUD past 4000? It's ROARING and sounds like it's about to explode by then...


69 Buick Special Deluxe. Intercooled Turbo Chevy 250 @ 15psi on a stock long block. It's kinda fast.