Hello there, I'm mud draging a full size chevy 3/4 4x4 pickup, 4:10 gears with 35 inch tires. I have a 454 bored .030 over with a xe268 cam, 781 casting heads with regular size valves and rocker ratio. Have a RPM airgap intake with a 750hp double pumper. Around 10.25-1 compression ratio. 350 tranny. Right now I think I have around 2500 stall it was my brothers old one. I race it in 4-low. But I can only hold it on line around 1300 rpm. Would it hurt me to maybe get about a 3500 stall. So I could at least hold rpm around 2500.
I was thinking a B&M holeshot 3600.