Stock 49,X2 on the pics please! Is the head also for a 235? What I have read the "best" head is one with 848 as the last 3 digits of the casting #. Did you install the larger intake valve in the head that you are using? Has the head been milled down for a compression increase? I have to admire and respect the time and trouble that it took to find all those NOS and period correct aftermarket speed parts. CNC-Dude, glad to hear about a second series of books. Jay
