18-08-2018, 08:49 AM
It's an after market manifold made in the 50's and 60's for A7 specials by the tuning companies of the time. It takes twin H1 SU's and works quite well compared to the standard set up. But as Bob says it doesn't fit under every bonnet, nor every owner wanting it. A short four into one manifold like this one releases most of the pent up A7 horsepower. One with longer primary pipes or a four into two into one might be slightly better but probably not measurably so. It does look unused to me so would probably sell well.
Dave
Dave