I have it and I love........
I love it for this truck have been useing it for years straight LPG.......I daily drive a 24v cummins. This truck used to be my daily driver though before I yanked it fron the road to make it a dedicated wheeler.
100 gal tank. Impco 425, model E, VFF-30 pretty standard for SBC sized stuff. Smaller Impco mixers like the 300 and down for smaller engines. Couple OHG 450 mixers for a BBC or a big single custom mixer for high flow from a single mixer. This junk is all over here in Calgary anyways, I have 2 complete systems right now, got both for less than $50. Tank was free. Yes the system needs a Cert. sticker, in order to fill at a filling station. Tanks need cert as well every X number of years.
theres some truths and theres some misconceptions floating around. Propane AKA LPG (liquid petroleum gas) is totally the same in your BBQ tank or forklift or taxi or truck. it is 110 octane. it is a dry fuel and burns hotter than gasoline. Your valves, when run on LPG, turn into hot little grinders. with no lubrication from the gasseous fuel entering the head, or the searing gasses leaving the combustion chamber., the valve turns slightly everytime it closes making a nice little grinder.
LPG
liquid is drawn from the tank, it is converted to gas in the vaporizer (conveniently named). converting liquid propane to gasseous propane is an endothermic reaction. which is why if the coolant is not properly plumbed to the vaproizer or there is insufficient flow through it, you will ice it up solid. but then you thaw it and off you go, no permanent damage. The tank is a liquid fill as well, from the filling station. yes it will freeze your skin if you get a direct prolonged blast. wear long sleeves and leather gloves when filling and working with connecting and disconnecting lines. You need a cheater hose to draw LPG from a 20lb BBQ bottle or 100lb or whatever you use as a "jerry can". Because it is pressurized fuel it will transfer fuel on its own from the 20 pounder to the vehicle tank UNTILL the pressures in both tanks equalize, then fuel transfer stops. Unless you have a booster pump, but that is not likely. so you're driving along and run out of LPG, you hook the 20 pounder up with the cheater, hold it higher than the main tank, upside down even. then open the valves, you might get about half the 20 into it. you drive some more run out again. repeat process, you might get a remaining 25% out of the tank. drive repeat, drive repeat.....until both tanks are exhausted.......then you're fubar.
timeing needs adjusting, recurve the distributor faster advance. 11.5:1 is a nice CR for burning LPG.
As far as safety as someone was conserned about, it very safe when installed correctly. The fuel lines for liquid fuel are steel braid, not an external braid like brake lines, its more like a steel belted radial tire. The steel sleeve is contained within the rubber. Very difficult to damage. There is a shutoff valve on the tank, turn it off if you have an open flame, but run like hell if the vehicle is on fire and heating the tank it will crater the ground when it goes.
LPG liquid will not convert to gas at ambient temps lower than -40c.
there is more if you want.
This is what my '80 looked like for years, bagged out 350 straight LPG, sm465. Daily driving in the city I filled the tanks torpedo frame rail tanks, every 3rd week. You can see the yellow plastic fill cap under the body line.
ditched those torpedo tanks in favor of this bigass 100 gal to feed the 454.
SUCKS!!!!!!!!! Good luck man, you will love being able to idle upside down!
