Alternative Fuels

What size is the large O ring in OHG mixer.
Thanks Remco

Is a dual impco 300 good enough to use on a 6/71 or should I use a dual OHG setup?
400cui engine with jus around 6 psi, for fun

Thanks,
Sorry for the late reply.

What is the octane rating for propane and butane? We have a summer mix overhere 40% propane an 60 % butane In winter it is 60% propane 40% butane. And how do I convert this to the US fuel rating? Building a supercharged 6/71 454 and try to figure out what the max boost can be with the 7.3 compresion...

Thanks , I just bought two more OHG 450x mixers . Had a bit of luck they are a bit rare overhere. So I have 3 now , Hope that Feeding them with 2 evaporaters will do. I think that engine will not be at WOT long, It,s in a dually truck, Not a race or track car . The one I had was on a 750 carb , so c...

Thank youfor the reply. I took the flow from this website https://accufabracing.com/cfm-air-flow If I look at this chart I see that the stoch 5L mustang flows 495 I think that that is a 60 mm Trottle body than , but is seems a bit strange and realy small to me . I do not want to spend a lot of € € €...

Hello, I have a C 30 dually truck ( a 6000 pound car) It has a 454 in it and I,m running it now with 1 OHG 450X and a 300 evaporator. Am going with a 6/71 on the engine. compresion ratio is 8-1 aiming for a modest 10 PSi boost . Am thinking about this cam from edelbrock 240/246 duration....560/573 l...

Hello, I have a 1979 c 30 dually, had is a my daily driver for a few years , running on propane with a OHG 450x . Am now rebuilding the truck, airride , 22.5 inch alco rims that I milled down to 22 . lots of interior work. But the biggest thing wil be the engine. Have a 6/71 for the 454, Not for rac...