I have been having a problem with our 2.2's. We have thrown 3 rods, 2 in cyl#3 & 1 in cyl#4. One was a street motor w/approx 80-90k miles, two of the motors were fresh rebuilds. Nothing has been the same, 2 different heads, different cranks, etc. One blew after 10mins track-time, second blew...