603S Engine

[will7262]

Well a lot to absorb in that lot from that conversation. Guess I need to find out what gearbox I have as a starting point and go from there. Trust me I will not be drag racing or sitting with foot on throttle and brake just want enough power to keep up a little respect for Bristol.
Surly others out there have taken this route with a 603 and it's variants
and all these questions have been answered before if nothing else than by trial and error.
Looks like only a small band of enthusiast use the Forum ......pity.
Still onwards and upwards.