[blownstracer]

how much hp should 10psi make ?
bbc twin turbo 555 14 psi = 5.4s 1/8
24-25psi =4.9s/5.0s ? I know each comb is different
just wondering what 10psi is worth hp wise 400-500hp ?

 

[tomato]

Depends on turbo, where it's at in the map and how much of the cylinder head is being used. At a certain fill point gains slow down.