Thanks for your reply sir. The main reason I insist that it must run on 91 oct pump fuel is because the only place we can get 93 oct on pump is in or near the capital city, however we can get 91 oct everywhere in the country, so if in emergency I must be able to use 91 oct fuel. Is there any particular dcr ratio I should aim for ?
Carb vs Efi, well of course we can discuss that for hours. But I like the Holley carb very well and choose to use one in the jeep for simplicity. Also we mainly drive on snow so there's no serious rock climbing involved. So if well tuned carbs do ok in our environment.