I went with even more gap than that on my 1990 V6, with some noticeable improvement in the sub-3000 RPM range at part throttle. But no mileage improvement, and no full throttle improvement. Jacobs is a waste IMHO.


-Bill
'87 4Runner w/ '96 5VZ-FE, 'Red Chili II'
'97 Taco XtraCab 3RZ-FE, 'BlackBean'
TLCA # 13257, Rising Sun 4x4 Club Land Use Coordinator
"He who stops being better stops being good." -Oliver Cromwell