How much power is lost through a 518

mbaird said

@AJ/FormS

So you are saying to kepp bumping timing at idle and backing off idle screw to maintain highest vacuum @ reasonable idle speed ?

What happens when your throttle plates won’t shut any further ? And doesnt that mess up your off idle transition from the idle ports ?

Click to expand...

No you keep it at the previously determined minimum cruising rpm, using the fast idle system or whatever it takes. this minimum cruising rpm is likely gonna fall between 1800 and 2400 rpm, depending on the cam's Ica mostly, and on the ignition timing secondly.
I edited the post for clarity.

On a side note; check out TrailBeast's post. He's working out real sweet street-combo.