you can check the archives here and see where my stage VI's were. I ran the old tried and true Ultradyne NF 69 277@.050 .640 valve lift 304 duration at .020. (1.5 ratio rockers) RB based 4.15 stroke (welded and stroked I might add), LY rods, Ross pistons. Had the shift light set at 5800 and ran a string of 9.91's at Famoso before I sold it. 9" converter, but I can't recall the stall. Funny thing about that mill.... I noted for a couple years that I'd run quite well in the 1/8th, but would often get drove around on the top end in the 1/4. This was with a 4150 M1 with spacers and running a Holley 850 carb. Finally ponied up for the 4500 M1 RB intake (no spacers) and an Ebay Carb Shop 1050 dominator. Picked up like .4-.5 in the quarter and the trap rpm went from 6200 to 6900. Pulled the 4.56 gears and went with 4.10's (29.5 tall slick) and went even faster yet! That thing was a low rpm tractor engine that some how is still alive. The guy I sold it to was well informed of how wore out it was, but he ran it for a season before selling it. I understand it's still running.