please help 88 n/a sputters hhard after 4500 at w.o.t

03-02-2007, 04:08 PM
does any one know of any possible sources of this? i have an exhust leak but we are talking magor back pressure loss at wot and only wot soon as i hit 4500rpm please help thanks

03-04-2007, 11:22 PM
exhaust leak could be related because the auxiliary ports (5th and 6th intake ports) on the 86-88 cars open with exhaust backpressure. so look into fixing that.

check this out:

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