Originally Posted by
opposite lock
I could be wrong but i'm sure it was said by reputable tuner once that over 500 a 4x4 becomes restrictive.
not a hope of me getting near 500 ,so should be ok
Originally Posted by
2Litre
Over 400 odd I believe, but intake manifold has same problem @ 400 elbow restriction.
Apparently better response on 4x4 Manifold (due to it shorter length) but I am told by a tuner drag chap that this is not nes true .
Tim.
better reponse would be good tim