The Spitfire 1500 tubular manifold would be a good place to start. As some of us already know, it can't be used on the Dolomite because it fouls the subframe. It would be useful a a guide for the primaries and would cut out some of the guesswork.
West Yorkshire Area Organiser & forum moderator
Meetings take place on the first Wednesday of the month at 8.00pm at The Britannia, 239 Swinnow Rd, Pudsey, LS28 9AP.
Dolomite 1850 auto (NYE 751L - The rolling restoration)
Citroën C4 Grand Picasso 2.0 HDi Exclusive (MA08 WCL - the modern)
BMW 318i (M265 PNC - Project Bimmer)
Vauxhall Corsa Design 16V (FE04 FKG - not mine! Being revived)
Former stable of SAY 414M (1974 Toledo), GRH 244D (1966 1300fwd), CDB 324L (1973 1500fwd), GGN 573J (1971 1500fwd), DCP 625S (1977 Dolomite 1300) & LCG 367N (1975 Dolomite Sprint) plus 5 Acclaims and that's just the Triumphs!
Check my blog at http://triumphtoledo.blogspot.com
"There is only one way to avoid criticsm: do nothing, say nothing and be nothing."