SBE 318 basic rebuild +CAM , INTAKE, HEADS, expectations?

Lo compression 340, whiplash cam and 3.23 gears runs 13.20 in the quarter mile.
...that's hard to believe.
Harder then stock 340 tm5 700 dp 3.55s 50s street tires13.1@103 for 40 yrs car bought new??
Theres a vid of that cuda running 12.96@104 just from going from 3.23s to 3.91s
He wasa moparts member
Takes very lil to run high 12s in a 340 a body if you have 1/2 a clue
intake
carb
gears
traction
Being able to tune
Stock 3.91 cars ran 99 mph
104 mph withe traction high 12s