[garagektc]

Hello
I'm waiting for 600cfm db holley to arrive and because it seems that the schedule to get everything set up before track day will be tight, I'm asking for help for speeding things up.
Car is -91 GT used only for road racing. It has stock -91 5.0 with cobra rockers, Hooker super competition shorty headers, weiand stealth intake and msd ignition. Manual transmission, naturally.
Question is, what size of jetting would you suggest to put in?

Thanks already for support...

[Dark Knight]

Stock jetting and see how it does. To many factors to really guess including altitude, maniflold as well as cam and heads.