[gbmidyear66]

Hi John

I have 4.10,s - but the SC8 is ideally what I need (I have a 43 tooth driven gear on the VSS (which would dictate the SC8)

I "think" I have eliminated all my vac leaks - I have excellent IAC value now - even when engine is hot. I will re-check the secondary system though (it was working fine before I ported the plenum).

For sure my VSS isn't "dead" - car runs generally OK - but there is evidence that it is "flaky" - will know better when I get under there - but am now ready with a new sensor (unless there is something obvious with wiring, gears, etc)

Thanks for your input

Glenn