I've had my s/c car for about a month now - it don't seem to go as well as it did when i got it - the boost still goes to 6psi but it seems underpowered. Had a race with a saxo VTR and only just beat it! Just about kept up with a clio v6. Am i just getting used to the power or is there anything i should check? Any suggestions on how to get more power out of her gratefully received! Going to go for water injection next then 8psi pully? Anything else i can do?