Sanger 351,
I read your post with interest. I saw a magazine only last weekend,that goes into a lot of detail about fabricating custom inlet manifolds, but there is only one hitch, the newsagent is located about 13,500 miles from where you live!
I live in Australia, but i'd be more than happy to buy a copy and send it to you.
I am a member of the D.L.R.A., and i'm in the process of building a car to run in Gas Altered.The car is a Holden Torana [G.M.] coupe, very similair in size and shape to a Chevrolet Vega, and I am using a Nissan six cyl. in-line engine. This is an E.F.I. engine, and I modified a standard inlet manifold,by sectioning the plenum,machined a new flange which was then welded to the plenum, to which mounts another machined flange, which carries 3 standard throttle bodies.
If you care to send me your details, I will get the mag. away to you a.s.a.p. My E-Mail address is with my sign on name,Y.B., on the members register of Landracing.
Regards, Garry Brennan
" Life's just fine, in a straight line!"