Power valves

[Blu Dice]

I have read that 6.5 is stock for a 94, mine is marked 7.5 - I assume someone has rebuilt this at some point. So what would I notice in performance to switch to a 6.5 - anything much?

 

[flatheadmurre]

7.5 is a standard.
Putting in a lower number is to let the powervalve circuit kick in later.
A bit up to if you want the power or mileage to.

 

[flatjack9]

To answer your question, you will not notice any difference.

 

[4t8v8]

As I didn't have anything else at the time I put an 8.5 in mine. Couldn't tell it made any difference.