What's the biggest shot someone has used...
#4
crazycutter4.8 225 shot 4.8l. With proper fueling, tuning, and a progressive or dual stage (to reduce engine shock), I do not see why 300 is not possible. Peple are pushing over 600rwhp on stock 4.8/5.3 block and they are holding. Only thing is at those hp levels on the stock motor, one blip=game over.



Hence the name "slowec" aka slow ext cab.