Join Date: May 2007
Location: Baltimore Maryland
Re: RPM Air Gap= bad low end torque?
What did you set your lash to? It's usually more than a 1/4 turn. Factory is 1 full turn past zero lash. Aftermarket is usually 1/2-3/4 turn. I haven't seen a cam company that recommends 1/4 turn. I agree with Skip and Tom. It sounds like your issue is with the valve adjustment.
On a side note, I read that this is a daily driver/1/4 mile thrasher. Does this mean this car will be driven in the cold weather months as well? I ask because I ran a RPM Air Gap and during the cold months the air gap feature does not allow proper atomization of the air/fuel mixture to occur, thus robbing you of power. I switched to a regular RPM manifold and picked up a difference in power that you could feel and this was in the summer months as well as the winter months. In the winter, the car would idle better, start easier and overall just rode better. Some will say what I just described is not possible, but I experienced it first hand. For a car that ONLY sees the summer months, the air gap feature is great, but if the car is driven in cold months, then the air gap, in my opinion, leaves hp and tq on the table.
Charlie Knudsen 67 Camaro RS/SS 350 TKO 600, 4.10's, AFR 195 Street Heads, Comp 270H, Rhoads Lifters, Crane Ignition, Pertronix Dizzy, Performer RPM Q-Jet, Heavily Modified Q-Jet, Hooker Comp Headers, MagnaFlow 2 1/2", 144 Decibles(Alpine CDA-7998 Head Unit, RF X7 and RF 750X Amps, MB Quart Mid's & High's, Kicker L7 12" Solo Barics)