As long as the car is up to operating temperature then I disagree. I ran a NX wet kit with a 50 and a 75 shot. I think 75 shot was the most I'd run with just a plug and play kit, but it ran good!
Just need some safeguards.
Former owner of '99 CSVT - Silver #222/2760
356/334 wHP/TQ at 10psi on pump gas!
See My Mods
'05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red
'06 Mazda5 Touring, 5spd,MTX, Black