i installed a 350 in my 49..i laid a angle finder(less than $5 at harbor freight) on the part of the intake the carb bolts to..i zero'd it.what i was left with when i put the angle finder on the flat where the starter would bolt to was a 3deg downward angle...hope this helps...dave


1949 Chevrolet 3100

"When this thing hits 88 miles an hour, you're going to see some serious sh%t." -Doc Brown