The Holley Blue pump has 3/8 NPT connections. 3/8 NPT has an internal size about 0.49", so it should be fine with your 1/2" line (or 8AN).
My street car has stock 5/16 pick up, Holley blue pump, 1/2" metal tubing, Fram HPG1 canister filter, 1/2" tubing, regulator, more 1/2" tubing, then reduces to 6AN just before the split to each bowl. Much less than some people, but works fine for a 440, 850cfm, 12.65 second 1/4 mile.
|