Posted 22 July 2017 - 11:12 AM
You can't really compare one company's stage 1/2/3/4 head with another company's stage 1/2/3/4 head, there's no specification for a particular 'stage' of tune. Two company's may sell heads with equal valve, spring and guide specs but one may spend more man hours shaping chambers and ports, man hours are expensive.
My experience of Avonbars workmanship in the 80's was excellent, and it's still Ian Hargreaves running it so I wouldnt expect it to be any different.
Do the Avonbar prices include vat?