Cross posted to FB. What should I do? My new engine build has a street grind cam. I just checked my fuel pump push rod and it looks to have 0.082" of throw; Well over the 050 I expected. It also starts about 030 deep at 0. The mechanical fuel pump seems to max out at 0.100". I can get close to zero at zero with two thick gaskets instead of the normal thick and thin; but should I? Will the system expand much under heat and bind? Should I pull the lower end apart and polish the pump lobe?