21-11-2021, 10:02 AM
(This post was last modified: 21-11-2021, 10:04 AM by Ian Williams.)
Yes you would probably benefit from the 1'' by the sound of things, the manifold I made for you should work inverted in that case provided the Ulster exhaust has enough upsweep to clear the dashpot. I was made to fit an OM to a std car so I don't think the bore restriction in the inlet runners will matter in an engine as you describe
Black Art Enthusiast