With my truck I sprayed some ether or something like it around the Intake I had leaks.esp at the rear side Butterfly bushing. Plus mine would run OK until up in torque curve then spit/sputter cough from air leaks. I replaced mine with new intake. just gives peace of mind. 1st one had around 126k on truck when replaced.

1990 Black Monty LS Over 300K' 1993 Isuzu Rodeo LS 4x4 46k (yes only 46K!)1989 Honda Transalp 600 Africa twin,