When good is not enough, Camshaft time again.
The new cam will be. 250/256-112, .550/.560. With 1.5RR but we will be using 1.6rr. So lift will be .587/.597 and duration will have a small increase as well. The rockers were 440 source aluminum rockers so unsure quality as to amount of lift was actually being provided. I am not seeking 550 hp at the rear wheels, btw. I would like to see at least 450 and still keep the street manners and drivability. Of course once I get to low 11s regularly, who knows what will be next.