TH fix I did 4 months ago with the 7/32 size but didn't like the no cold idle result. So put in the 1/4 inch hole and have cold idle with a 60% reduction in the shifting 'hang time'. Seems perfect for my use. The smaller the hole, the faster the revs come down (cold or warm). Performance seems the same. ZZZ.


'99 SVT black/blue #871