here's my
Cam is probably too small . I know direct comparison SFT to roller are difficult , my 505 has a 272@050 SFT .
Carb size - I went from 4150 (HP1000 Prosystem) to 4500 (1050) was only a quite small gain . Definitely not what I expected or everyone suggested . I tried adapter and then bought a Super Victor , adapter did not work for me .
Cylinder head is the elephant in the room .
I know you have moved to TF240 from Indy (?) . I had CNC stealths car went 10.50 but that seemed close to the end of what was there .
Split the intake ports on 1 head , stepped over to TF270's . Picked up a solid 0.25 seconds and about 3MPH .
NO other change . I had a Super Victor I opened it up to match the TF270 .
Picked up a little more MPH with a 30"tyre but lost a little ET .
I ran a 5000 stall when footbraking , now has a 5800 - behind my 440 . Was 56-800 behind the Stealth headed 505 . With the TF270 the stall went higher . I was shifting @ 6000 it never fell back . Probably needs to go out towards 6300 shift when new 505 goes back in .
I chose 6000 shift because it was happy and I didn't want to spin the stock block too high on shift . It trapped just under/on 7000 @ 131MPH . Plus I hit my ET goals . Unfortunately the block gave up the ghost at this time . Around 675HP .
Good luck , but I have been down that road of change but no gain
Tex