how much tuning before ecu needed

[jondee86]

Yes, I have 255 intake/250 exhaust cams, and the difference from
stock is not huge. On my smallport engine with standard compression
it pulls harder from about 3000 rpm all the way to redline, with what
feels like a fairly flat torque curve.

I'm still playing around with the cam timing, to see what works best,
before I put it on the dyno. When I tried the cams at 110/110 lobe
centres, they felt no better than stock. Now I have them at 102/114
and I can definitely feel the difference

And the stock ECU is working fine. I have it idling at 800 rpm with
15 deg base ignition timing.

Cheers... jondee86