Inliners International Forums General Discussion Hi Performance Old School chevy 292 natural aspirated for power

Well ok the Gonkulator still says about 107mph in the 260z.
I can "detune" it of course, cutting all across by 10% gives 103mph.
Of course, a hot day with a headwind could give the same result.
So maybe there is more in there.

As far as the head, others should respond too but I think the consensus is that with the big chamber 230/250/292 head, the 1.94 intake is fine.