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i reackon between 300 and 318 rwhp on a proper dyno not many maffless tuned cars go over the 320 odd mark , stay away from that 96mm professinal manifold and dont go spending 2.5k on a fast manifold with out a cam and/or heads you will see no gain i only got 5 rwhp gain on mine and thats head and cam
dont want to go riping the motor out just yet... plus if i got a cam i would hav a higher target then 250... like 280-300rwkw with some internals done whilst the motor's out the car...
is there anything small i can get, without going to a cam atm, to get me to 250 on a 'good' dyno.. lol
cheers:beer chug: