So I recently purchased a 2003 g35 it has a ticking noise so I decided to get my hands dirty and rip the motor apart to get to the bottom of it finally I came upon a single exhaust lifter that is way out of spec the gap is 0.035 of a inch with a gap that big I can’t seem to find a replacement lifter that would work I already check the camshaft and it is in spec is there anything else I should check? Any place I could get a custom lifter done?!? Please help any information is highly appreciated