Gents please don't flame me since I've searched and not found definitive information.
I've built a 2.8 on a 70.4 mm crank with 92 mm bores and proper S grind cams. The heads are ex 2.7 CIS the pistons are je 10.5 nominal . Cams timed at 5.2 mm lift
I dry built it to check deck at 1.3 mm and am now at clearance checks for the valve to pistons.
I've got 2.0 mm inlet and 1.5 mm exhaust with zero lash.
Question is , is this enough for a street motor and can I "even it up" to get more exhaust clearance by adjusting ( retarding ?) the cam timing a little. If it can be retarded which way would I go. Is it setting the timing lift to the minimum value or the max in the range? I really want to avoid tearing this down again if I can.
