The Holley intake manifold is cast with only one vacuum port, which will be used for the brake booster. Given that, I was forced to drill and tap a few extra holes to accommodate the manifold absolute pressure (MAP) sensor, which will hide behind the throttle body, and the PCV valve, which just barely fits underneath the plenum floor. The PCV is a mid-60s GM V8 piece that uses 1/4” NPT on one end and a hose barb on the other. The plan is to plumb to the back of the valve covers for a completely hidden system.
I went ahead and mocked up the fuel rails, injectors, and fittings and am happy with the fit of everything. Time to get this thing in some color
__________________
-Chris
Instagram
_elgringoloco_
'70 Short-Wide How to: Ruin a perfectly good C10
‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd
'72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD)
'72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD)
'05 Yukon Daily Driven (not so stock) Yukon (SOLD)
‘07 Yukon Denali (daily)
Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy