Ok, Update.
Good: Got the 170 engine built, and in the car.
Good: Pulled the "knocking" 225 out, and it was not the engine knocking. Forgot to tighten TQ bolts :(
Good: got the 170 to the track Fri night.
60 ft.....1.734
1/8........7.942 at 82.92 mph
1/4.......12.874 at 95.03 mph
Video of the run, with 170 engine
Bad: engine layed over at just before the stripe, and started pushing smoke. Haven't checked it yet, but think it ate a piston(s).
