Anyone know what size hose this is from the throttle body to the AAR on the 78 I thought originally it was 5/8” but that seems way too large.

 

Also anyone have a good hose recommendation it’s pulling vacuum can I just use heater hose though?

 

 

Sent from my iPhone using Tapatalk

Try Mishimoto 1/2” PCV/CCV hose. It’s a tight fit but worked on my 78. 

Thank you 1/2” was tight but it did work


Sent from my iPhone using Tapatalk

If you haven’t already, check out the Mishimoto stuff. Glad it worked for you. Hard to find any heavy hose thats not steel braid.