new build
It is 15% daily 25% Autocross 10% road coarse 50% drag 100% fun I have built 4l60, 400 Turbo, and a six speed depends on what I want to do that month I'm also thinking of just going to a 408 everything else u have from the last engine
I ran a 238/242 in my 346 and it was a hair too big on the street, but dropped it in my 408 and it was too small lol....now I'm running a 255/271 .624/.624 115 and love it!
The 238/242 would probably work great all around for a 390
The 238/242 would probably work great all around for a 390

