Those 50 CI will not get you a few hundred HP.So Tony's also running 224 cid?
I hope that 155+ means a lot faster than 155.
You do understand that a turbo capapble of 1500HP can make 1500 on a 4 cylinder engine as well and a V6.
Why alot faster? at the boost level he went 155,mind you while on a small drag radial it would be flying!