Finishing up my new 408 as we speak to replace the 422 that has been in my black duster for five years. Indy headed 422 went 5.98 in the 1/8th mile and 9.42 in the 1/4. Hoping the new moved pushrod Edelbrock headed 408 runs 6.0’s and 9.50-9.60’s. My 572 is in my blue heads up duster and bolted to a 1.69 low gear powerglide I built. It needs fuel lines made, wired, etc so hopefully it’s ready to go by June.