Re: Power Valve Tuning???
Jason, the PV numbers equate to their opening vacuum, so a 105 opens at 10.5" Hg, a 095 at 9.5" etc. I run a 095 only because in a 4 gear a 105 MAY dump every time you shift. The 427 required a 085 for this reason, the 600 ft lbs 467 can use more.
i witnessed this as I left my vacuum gauge permanently mounted in the car. Helps for carb tuning. ( and told me when my valves were out of adjustment - much more reliable than my ears)
ACES 3112/Team Chevelle Gold #62
Be big, be a 'builder'!