buZy Posted October 26, 2004 Share Posted October 26, 2004 My 69 327 in my 71 Z starts to cut out pretty hard when i get into or close to the mechanical secondaries at higher rpms. Also it won't hold a steady smooth rpm at part throttle crusing at an even road speed. When driving the car a very slight jerky feeling and with that an exhaust missing note that comes in and out. The car has a cam with a rougher idle but should still run/drive smooth around 3000 rpms or even slightly higher or lower. Right? My redline is 6500 rpm. Any thoughts? Tonight pulled the plugs and did a compression check. All cylinders are very good. With in 5 lbs of each other at a 160 psi average. Will replace the plugs (NKG V-Power BCPR5EY) with new ones tomorrow with an .035 gap. Changed the cap and rotor brand new pieces too. The fuel system is all new from tank to carb fittings. My carb is a Holley 4150 650cfm in almost new condition too. Fuel pressure 6psi at carb. Plug wires and ends look ok upon close inspection too. Anything else I should be looking for? Thank you. Brian Quote Link to comment Share on other sites More sharing options...
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