morning, I have an 89 Blazer the question I have is what's the difference between a throttle body on a 350 and a throttle body on a 305? My Blazer doesn't have the original motor (originally a 350, the owner before me put a 305 in it) and it looks as if they just swapped the throttle body from the 350 on to the 305. The serial # on the throttle body is 1787101. Is that going to cause me any problems?