- Location
- Cairns Australia
I've just pulled my engine down for a rebuild and have noticed how poorly the ports in the sleeves align with the ports in the cylinders. Bores still measure 81mm so id assume they're original. Is this normal? Blind Freddie could port these cylinders and do a better job im sure. Id assume there are gains to be made just by matching up these ports without touching the timing or size of the ports? Anyone done this themselves with any success?