Holley Carb Jetting Help, Lousy Fuel Mileage
Frankly if he has any kind of "right foot" that might be all you can expect in town.
Yeah, I've considered this..... He's mellow when I'm in the car, but when he's with his friends, who knows... All I can say is I haven't noticed any rubber chunks on the rear fenders....
An update on the advance issue. We're not running vac advance at the moment because we can't find a vacuum advance can with less than an 11 stamped on it. Trying to run the current can (which is unmarked), the engine shuts off when we hook up the vac line. Idle advance shot to over 40 deg with a 10 deg base setting (checked by hooking up a hand vacuum pump and timing light). So for now we're just running more base timing until we can find the right advance can.
The exhaust is stock manifolds, 1 3/4 head pipes down to 2 1/2 duals starting at the torsion bar crossmember, with Flowmaster 40's. The driver side headpipe has a couple of sizeable "reliefs" dinged into it to fit around the torsion bar on that side (done by a PO). We're considering replacing the headpipes with Accurate Exhaust's 2 inch headpipes, but I'm not sure how much of a difference that will make.
Cam is unknown. Engine was rebuilt by a PO. Car idles smoothly in gear at 700 rpm with no noticeable lope, so if its not stock its close.