View Single Post
  #8  
Old 02-06-2025, 12:39 PM
steve's Avatar
steve steve is offline
Ultimate Warrior
 
Join Date: Jan 2006
Location: Philadelphia PA
Posts: 4,977
Default

Quote:
Originally Posted by Half-Inch Stud View Post
Early Upshifts are typical for high vacuum, and you'll appreciate that.

Vacuum mod valve in case is prone to stick: pull modulator to access the valve; pull valve and 320 grit the valve in a drill press. until it slides in the case without binding. Turn vac mod screw ccw about 2-turns if you never adjusted it.
That’s great info ! Just to be clear. You do mean turn the modulator adjustment screw CCW not CW ?

__________________
1981 Trans Am project -YJ 400 stroked to 488 CID-74cc Eheads-10.95:1-Northwind Intake-Holley Terminator-TH400-3:55 Moser rear-Dougs Headers....