I picked up this Holley SD intake for 30 bucks. I'm going to see if it will perform better than the cast on my low dollar 318 in my '74 Duster. I don't know what the results will be, but I'm installing it today. We know intakes perform according to the project. Right intake for the right project. My question is this: Is this combo the right place for the Holley SD intake? Here are some fast facts:
- Holley SD has small 318 ports, which I'm going to gasket match to the 318 gasket
- Duster has 2.76 gears, stock converter, stock exhaust manifolds, stock bottom end 318 with 120,*** miles. Home-ported heads, added 670 holley with Summit 109 dollar cam/lifters.
- Car ran a 14.95 @ 94.9 mph. 60 ft times were lacking......