* Jet for MPH.
* Squirters & pump cams for 60'
Be careful so one doesn't overlap the other. (i.e.: too much jet can mask a need for bigger squirters and/or a bigger (longer squirting) pump cam.
Smaller squirters will increase the duration of the squirt and bigger squirters will shorten the duration of a given pump cam. You don't want the squirt any longer or shorter than necessary because it will mess up the A/F ratio of the main metering system (jets).
Yep. All that stuff contributes to optimal ET’s. But his car is off 8 tenths or more.