Okay so I have an 86 Cutlass that I just put a 72 Olds 350 in.
My question is what vac lines do I have to have hooked up?
At this point I have the pcv valve in driver valve cover going to port on rear of intake btw it is a (Performer) I have the power brake hose going to carb btw it is a (Holley) 600 cfm elec choke vac secondaries. I have the vac advance going to the ported vac spot on carb. and I have the vac modulator on trans going to a port on the intake.


The car itself has some vacuam lines that I have not done anything with such as the charcoal can or whatever it is called lol. I am just wondering for starters do I have the lines that are hooked up done correctly???
and second do I need to have any other vac lines hooked up to make things make things function better or right???


Side note- it does not have an egr set up on the engine. spot on intake has block off plate.

 

I assume that if the trans has a vac modulator, it's a TH350?

If so, the only vac lines you need to get the car to run are the vac advance and the trans modulator. Eventually you'll want to connect the vacuum to the heater control if you want heat and defrost, but that won't affect how the car runs. I assume you're not using the cruise control, so that's not required, nor are any emissions-related items. Did you use the exhaust manifolds from the 350 or the 307? The 307 manifolds have a vacuum actuated EFE valve in the driver's side outlet, and if it's stuck closed, that will SERIOUSLY affect performance. As in your other thread, you need to tell us the specific details if you want useful information.

 

Ok sorry about that..... It has hooker headers that came with car.
also problem with these headers are the knuckle on the trans for gear selection will only go down to drive before it hits the collector and bottoms out. any remedy for this issue? also yes I believe it is a th 350 has square pan with corner cut on it.


And yes I seem to be inching more power out of it but it is definitely running like a pooch. the wife referred to it as a granny mobile not good right? I know.lol I told her it was going to really impress her. now I am looking like a schmuck........ please help.