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I had said, IIRC in relation to Harold Brookshire introducing assymetric lobes. I did not recall correctly, a little research, and I found that OEM's have been using asymmetrical lobes since the late 40's. :( I was very wrong......lol Also, Brookshire referred to his designs as...

Kinda funny subject, and answers (all from the same tank?). But I won't argue the subject, I agree with the beer, oil, spark plugs analogy. FWIW In the San Francisco Bay area there are, specifically, a Shell refinery, 2 Valero refineries, 2 Chevron refineries, 2 Phillips (Conoco) 66...

It seems that Howard's lobes stay at max velocity just a couple degrees longer, which tranlates to the additional lift. This is where the extra spring pressure is needed, as given more lift over same duration requires "deceleration/closing ramp" to happen quicker (more abruptly) than a lobe with...

I noticed the same thing years ago when perusing my Ultradyne catalog (pre Bullet days). So I called old buddy Tim at Ultradyne, and he explained the initial movement vs ramp velocity/intensity "thing". A "true" .904 SFT can move off of the base circle quicker than a even a solid roller can...

Despite what Hughes claims, their cam profiles are Howards.

A slightly shorter. 050, (and a lot shorter advertised) 110 LSA, in at 104 CL would probably make you much happier. Getting up around 170/175psi will sharpen response and still be liveable with California "gas".......

Just my 2 cents, but cam manufacturers notwithstanding, it's important to understand why your current cam isn't performing as you would like. While the cam is a bit on the large side (duration wise), it also appears to be an older design. The "advertised" number is very long, particularly for...

A decent "rule of thumb" is, 2hp per cfm. A stroker isn't "necessary" for 600hp (crank), airflow is. As Jim LaRoy (IQ52) says, the 3 most important things for good power, "cylinder heads, cylinder heads, and lastly, cylinder heads". In any given situation, airflow will determine hp/tq. A 440...

Since nobody mentioned it (or asked.....lol), I'll bring up the Strange S60/Dana. Nodular iron housing (lighter, as well as stronger), and comes with 35 spline axles. I have a B width S60 on a pallet in the garage, but unfortunately, no shipping weight on the tag. Anyway, Strange claims...

A bit ironically, the BF Goodrich name has been owned by Michelin since 1988. Michelin does actually have (imho) some good rubber compounds (their SuperSport line in particular). Unfortunately for the T/A's about 15 years ago they changed from the "old T/A compound", to a "modern" (but cheaper)...

The poor guys at TrickFlow musta' figured they missed on the exhaust port.......their own cam is a split pattern "crutch"....... Though you're only looking for 500rpm or so, 512 cu in, TF240's, and 1 7/8" primaries are going to conspire to fight you a bit. (edit for clarity) Not at all meaning...

I had the same (cap) issue with a set of Jeg's SSR's (Prime re-labeled). It seems to be a stupid mistake on their part. They're 15" wheels.......that means that the supplied caps won't clear the spindle hubs on probably 98% of the cars they will be ordered for. Then, they vary the bore size...

We had some old Fairbanks Morse magnetos in the shop........"snap" a turn on one of those......pretty sure "once" will be enough, lol.

If I understand your question correctly. The voltage spike seeks the path of least resistance (like most things in nature). When the points are closed, a voltage charges the windings in the coil creating a flux field around the coil. When the the points open, the flux field collapses across...

Great that you all could share some light in an otherwise dark time. Thoughts and condolences to you and your family.

Before & after

I know you're considering different wheels to accommodate the larger tires, but if you're not aware, (you do seem pretty informed though), Weldcraft Wheels can widen aluminum wheels for you. If you find the wheel, and front spacing that fits, they can add how ever much you have room for on the...

Another aspect to consider is chassis prep, not just the tire, but the chassis ability to "plant" the tire. If you haven't seen the times that the FAST (Factory Appearing Stock Tire) cars run, check it out. Some of these cars run in the 9's on F60 tires. Case and point, Bryan Doyle's '71...

Hard to argue with a "sweep" pattern like this. I've been running Mike's kit for about 4500 miles, (TF240's), very happy with it. Followed his directions for pushrod setup, and have fairly well minimized "in-out" movement on that side as well. .584/.596 Ultradyne SFT.

I've been using the FBO box for a couple of years, very happy with it's performance and rev limiter. Plus, if it ever has issues or dies, you can plug in a factory box and be on your way. Wiring is the same for both units. I did think the original cover sticker looked cheesy, so I peeled it off...