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 on: March 29, 2015, 12:21:24 AM 
Started by zman1969 - Last post by BULLITT65
Great number crunching, & Good info brother.

 on: March 28, 2015, 09:50:37 PM 
Started by 1967RS/SS - Last post by 1967RS/SS
Thanks for the help guys. Until I can get my hands on the K19/K24 parts I'm going to use the valve cover for ventilation...

 on: March 28, 2015, 08:07:26 PM 
Started by zman1969 - Last post by X33RS
X33RS, what size tire would that be to get the good mileage without over revving... Danny

If your looking for a 28" tire there are only a couple options that I know of that may or may not fit.
A 275-60-15 is 28" and usually what I'll run on the back of most cars, but it's a tight fit on a 69 camaro and would likely rub unless you got fancy with backspacing and rim width.

Another option would be a 235-70-15 which is 27.9" tall and doesn't have near the width of the 275's, so these would be a much easier fit on the rear with stock wheels.

If you want to go more then BFG makes a 255-70-15 which is 29" tall.   Depending on the car I sometimes mount these tires on extra wheels and can quickly toss them on for a long highway trip.  That way most of the time your regular size tires stay on the car.

Keep in mind an inch added to rear tire height only knocks about ~150-200 rpm off the cruise rpm.  It's not a big change unless you're running 26" tires.

I generally run a 255-60-15 on the back of a 69 camaro which fits snug and fills the wheel wells nicely.  These are 27" tall.  With 3.73's I'll turn 3,000 rpm to go 65 mph.  I've criss crossed the country cruising like this without complaint but could knock that cruise rpm down to 26-2700 with the 255-70's tossed on.

 on: March 28, 2015, 07:33:29 PM 
Started by ko-lek-tor - Last post by BULLITT65
I like the (N66) wheels. In the ford circles we call them magnum 500's, they also offered them on Mopars with an even longer center cap.

They even make an aftermarket  17" alloy version for all 3 makes now.

I am actually running a newer modern version of this wheel on one of my rides.

 on: March 28, 2015, 07:04:58 PM 
Started by zman1969 - Last post by jdv69z
Mine Z has 3:73 w/ M20. I think it's right for in town driving. Too much gear on the highway. I'm revving 3000 at 60 mph. I also think there's a reason the 3:73 was the base factory gear.

 on: March 28, 2015, 06:59:58 PM 
Started by ko-lek-tor - Last post by z28z11
Badstrip and emblem placement, but you gotta admit the N66 wheels look awesome -

 on: March 28, 2015, 05:56:27 PM 
Started by zman1969 - Last post by dannystarr
X33RS, what size tire would that be to get the good mileage without over revving... Danny

 on: March 28, 2015, 05:54:28 PM 
Started by dannystarr - Last post by dannystarr
Well that's good, I paid $40 for it.  Grin  I will put it for now in my "trade parts" section in the garage. And use it hopefully for trade value to help me get some goodies for my car. D

 on: March 28, 2015, 05:13:07 PM 
Started by zman1969 - Last post by X33RS
Yeah, that's how I meant to come across, lol.  The M21 and 3.73's are pretty common but I've always felt the M20 with less rear gear gives better drivability all the way around.  I run the M20 fairly often because of that, since I tend to want to drive my cars, sometimes long distances.  Even though 3.73's aren't a bad all around gear if you can get a 28" tire under it (28" tire gives 2800 rpm cruise at 65 mph) and I find that pretty comfortable.  Shorter rear tire then I tend to want to knock some rear gear out of it.

 on: March 28, 2015, 04:57:05 PM 
Started by stovebolt - Last post by stovebolt
I'm gradually installing the smog equipment my '68 L6 originally came with. I don't have the smog pump yet but most everything else. My question is: could I install the pipe assembly and check valve but not the pump? Will the engine run normally? Will the engine require carb and timing adjustments? The carb and distributor are the original smog units. Thanks for any help. Joe.

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