I've been building a hawk stratos replica for more years than I care to remember, however now I have some time to get it finished.
The engine is a quite a high spec lancia Beta 2100cc, with HC pistons, ported head, Abarth spec rally cams, 45 dellortos, etc etc and 4 to 2 exhaust system. The engine will not run at all cleanly due to the short length +/- 9" of the primary pipes which I understand should be at least 17-1/2" long.
My current plan is to modify the existing exhaust system bit this is not a trivial job, so does any member know if a suitable exhaust manifold exists, either 4 to 2 as per the original Hawk system or possibly a 4 to 1 system which I have see a photo off may years ago but can't find any details of manufacturer.
Any advice gratefully received (other than using an Alfa engine !!)