race veterans plz help 2

[bignasty123]

thanks for the input guys..i put a the black spring in the sec quick change spot and i also added a 42 squirter now hesitaton is gone i used my drive way as a burnout box and launch place...lol...thanks again moparts but now my question is im going to the track again now what to do ant suggestions on jet size where to start stoock ones are in the high 60s?thanks again reply would be awsome cant wait to race again hope to nail low 12 again and tune it to 11.99 that was my goal2 years ago thern start a new project

 

[bOb shingler]

start stock then go up 4 steps at a time until the mph stops going up, then back it down 2 to see if it goes back up. if not go down 2 and you have it.

 

[Locomotion]

You need to confirm what the "stock" jetting is.
If you end up going up several #'s, you may be able to go a little smaller on the squirters and a little lighter on the secondary spring.

Do one thing at a time.
Jet and secondary springs for MPH.
Squirters and pump cams for 60'. (IF it hooks consistently.)

At the track, launch at the same rpm and the same water temp and shift exactly the same. (Autometer playback tachs are VERY helpful for tuning and learning. You'll see your ACTUAL launch, shift and converter flash rpm's, not what you "think" you see. You can even notice launch hesitations that may not be obvious.)
Use the first pass as a warm-up and start establishing a baseline with the 2nd pass and after.