Can I use my crane1.7 roller rockers with the comp xe270hr cam with 114 lsa? I know that comp makes a cam for 1.7 rr but it's with 112 lsa and i've heard and read you need to stay with 114 lsa. when you have speed density.

You will need to check clearances but I'm sure you will be fine. With my old motor in my 87 with the same cam and 1.6 rockers w/ gt40p's I had .110" of clearance on both the intake and exhaust side.