Torsion bar installation question

AJ/FormS said
Ima thinking you(A56) know this; but for newbes reading this;
Without headers, the Overlap cycle is sacrificed. All cams have overlap, even the factory 318 cam. Some say that headers put an easy 35 horsepower on an early 340, and that 340 cam sported only 44* of overlap. IDK if that is true, but I could believe it. If you had a 318, even 5hp would be noticed, lol.
But to be fair, the bigger the engine is, in an A-body streeter, the less important this is.
Same as goes with compression or stall.

Since I only have a 367, with a nice-sized street-cam, Headers are very important to me. As is the cylinder pressure, and I have a clutch. and 1.03 bars. And an overdrive transmission, allows me to run any street gears I have a mind to, so I get to exploit that overlap cycle TWICE on the way to 60/65 mph. That cannot happen with an automatic tho, so I see @A56 's point. I mean it could happen, but you'd have to run a rear gear, something like 4.30or more; which will take your streeter, out to the extreme outer limits, of streetability.
Long live the manual trans!
But again, running a 416, makes this, sortof moot.

A stock '69 340 pre- low compression, smaller valves debacle, had according to NHRA 300+ hp. That car new would run low 14s' all day easily without headers. Remember, Ronnie Sox drove one with fender well exit headers, Holley carb, Edelbrock intake, 4 speed, 3:91 SG to 13.3 106 mph with street tires. For the street they already handled really well. For fun add good shocks and a MP 1.14 torsion bar and it would be tough to wipe the smile from your face.:steering:

* As a side note this car has the heavier fold down rear seat, p/s and p/b