It makes a big difference, if ya know an exaust guy...LOL
Keep a choke provision tho, mine needs it even in 70 degree weather!
O.G.


84 D150 440/727
79 /6 swb D150
1964 A100 window van. Just because it has spark plug tubes doesn't mean it's a Hemi.



If ya haven't been there, ya just wouldn't understand.