just like stated in the subject, is there any difference in the parts to make the cruise control work on a 305 and 350, they are vaccum operated rite? didnt know if one engine had more then the other

I ask 'cause my car is originally a 305 and I put the L98 in it, and the cruise is a lil wierd. if you read my post about "more clues to my bad idle" you'll see a lil more info about my cruise control.

 

86,

I would seriously doubt that there was any difference between the cruise servos within the same model years. The units are actuated by vacuum, but controlled by the closed-loop servo/feedback control system within the unit. The level of vacuum wouldn't matter as long as its sufficient to move the bellows, probably less than 10" Hg.

 

engines an '87 L98 my car is originally an '86 L69 (or whatever the code was for the TPI 305)

But I see your point

 

LB9 not L69