66/440
Well-Known Member
I am doing some clean up on my engine compartment. Just had my intake manifold coated and am in the process of reinstalling. The intake is an Edelbrock RPM Air-Gap. I have always used carb spacers/insulators to help prevent vapor lock and hard starting because of fuel evaporation due to heat.
Today I was looking at my manifold and thinking I needed to be sure to put a spacer on it. I started looking at spacers and realized that in the past I had used multiple styled usually based on what was available at the local parts store. However today was one of those days when you begin to question stuff. I looked at the Summit site and basically there are three different styles, 4-Hole, Full Open and Divided Plenum. SO the question is what are the operating differences and what impact does it have on drivability / tuneability? I am using an Edelbrock carb car is a regular driver.
Today I was looking at my manifold and thinking I needed to be sure to put a spacer on it. I started looking at spacers and realized that in the past I had used multiple styled usually based on what was available at the local parts store. However today was one of those days when you begin to question stuff. I looked at the Summit site and basically there are three different styles, 4-Hole, Full Open and Divided Plenum. SO the question is what are the operating differences and what impact does it have on drivability / tuneability? I am using an Edelbrock carb car is a regular driver.