Hey everyone. I belong to a Vol. Fire Dept with a 1981 Ford cab-over pumper. It has a 534 with an auto trans. Holley 1150 cfm. Enroute to scene this thing cant get out of its own way. (Hope my house doesnt catch fire!) Takes damn near 1 mile to get to 55 mph. Granted this thing is carrying 1000 gal of water but it just doesnt seem to have any get up and go. We have had the thing pumping at capacity and notice the exhaust manifolds, Y-pipe and first 2 chambers of the muffler glowing cherry red. The big red truck isnt supposed to be red underneath too! We've melted asphalt with it along with torching yards. (Embarressing!) My question is: Isnt this alittle large of a carb? and the glow in the dark exhaust...is that normal on this engine running damn near wide open??? Hate to think that the fire truck is a fire hazard! Thanks guys!