Soooo, you're just itchin' to get your '54 rollin' too, huh? Cool! Well, good luck on the project, I'm glad you got that motor free'd up and I wish you luck! I did THIS and you might try it too, I ran a bottle of marvel's mystery oil in my 235 at first to help clean up any of the rust and other YUK in the motor that may have come from the rust. Just a thought... I'll run it a while (not too long, maybe 500 miles) and then change back to the straight 30... Good luck! randy