Just bought a '64 Nova with a 194 CuIn Inline 6 with 0.030 over pistons, 390 cfm Holly 4 barrel carb mounted on a Clifford Aluminum Intake, Crane Cam specs: cam timing .050 lift, intake opens 1.0 BTDC Closes 35.0 ABDC Max Lift 107 Duration 216, Exhaust opens 51.0 BBDC closes (3.0) BTCD Max Lift 117 Duration 228, Min RPM 2000 Max RPM 5000 Valve FLoat 6500 RPM. Headers with Flow Master Exhaust. Starts, Idles and runs great...but....at idle for a minute or 2 (normal wait at traffic lights) it starts to smoke (blackish color). It puffs smoke for the initial take off acceleration then goes away completely. Never smokes at high RPM or under a load...ONLY at idle. MPG city = 12MPG, MPG Hi-way 23 MPG @ 2400 RPM/60-65 MPH. had a few guys adjst carb with neg result. Have been told that this is a common set-up for a hot rod 6 and it is NOT over carb'd. I really like the sound and top end performane...win lots of beer cause everyone thinks it is a small block V8. Don't want to put a 2 Barrel on if I don't have to...sorry to be so long winded but wanted to give as much info as possible...HELP!
