I just purchased an Edelbrock Hi-Flo intake manifold 3860.
This will not be installed until next spring, with aftermarket runners.
Now, I know this is made for Corvettes too, so im wondering, apart from the rear EGR block off, what do I need to plug? I want to buy the correct plugs, gaskets etc, so it will be a quick install. What thread are the plugs and where can I get them?
Ooops, almost forgot.my car is an -88 Trans Am GTA with stock 350TPI.

regards
Hasse

 

It still has the provisions for EGR, so you'd just need a new EGR gasket...no use deleting EGR.

Nothing to plug that I can think of.

 

There should be a coolant port next to the distributor hole and corvette egr port. I don't know what size it is but ordinary hardware stores will have it. Then block off the corvette egr port and you're done.

 

Along with the plugging the Corvette EGR port and coolant x-over, you're probably going to have to modify the coil bracket that is sandwiched under the two rear manifold bolts on the passenger side so it clears. Just grind/cut out the center portion so it clears. You can also stand it off a bit with some thick washers. You'll also need to angle the EGR solenoid a bit to clear.



IIRC, there's also a threaded boss in the front on the driver's side (sticking straight up) that may need to be cut down.

Remove the sheet metal heat shield under the stock manifold and transfer it to the new manifold.

 

Thanks a lot for great info