Originally Posted by Fergusonic
I am preparing to install a 1971 Rochester Quadrajet on an Edelbrock Performer Intake. A couple questions: 1) Is it required that I install an Insulator between the carb and Intake? 2) If yes; then is it required to also install a base Gasket on each side of the Insulator? (Insulator is 1/4" thick and is made from what looks like pressed gasket material.)
The Edelbrock intakes with exhaust crossover are bad about transfering too much heat to the carb. Many block the crossover completely to prevent this. If you haven't installed the intake yet. I'd at least use restrictors in the exhaust crossover.
You should use the insulator gasket. You don't need a base gasket on either side of it. It acts as a gasket & insulator.
Tip: Rub a little Vaseline on both sides of the insulator gasket to make removal easy next time.