Correct Carb sizing for your motor

I have a 406 cu with pretty much all the goodies,the aluminum heads could take a little more porting,11.5 compression 1.6 roller rockers with a Victor junior single plane manifold which I shift at 7500-8000 and I have run the same old 800 spreadbore double pumper for ages.The carb gives me decent mileage( small primaries) and when I stomp on it ,it pulls like like there’s no end.The equation above works out right at 792 cfm with 90% VE.I have thought about changing to a square bore carb on many occassions,but I know that I will suffer in the gas mileage.I believe for the street the spreadbore is hard to beat. (I don’t want to start another argument though!)

Clunk in Jaguar rear end

The jag rear end is susceptable to the outer fulcrum rods wearing, which gives the hub a little play and hence a clunk. Also it can cause a shudder when pulling off and make the car pull one way when accelerating and the other when braking.You need to check all the universals as well which can also cause “clunking”.I use a hypoid 90w and a limited slip additive (if you have an LSD” .Sometimes the big center nut on the axle will also come slightly loose (even with the pin) and may require a little shimming to get no play. Don’t just tighten these!
www.slitherclothing.com