I appreciate any advice you guys can give. I've been on the phone with Comp, Howards and Hughes. I've been surprised by the variation of their picks. But in picking their brains I've come to better understand it all, and refined all the choices. One thing I've heard a few times by people who built a 512, was that 512 stroker setups like to "absorb" peak listed 440 cam numbers, such as stall speed and power band. I want to keep my redline are 6000rpm, so train of thought by those who've done it say to get a listed 440 cam that says it's power band goes to 6500.
Anyway, here is the breakdown on the vehicle, and the cams I'm trying to pick through.
'67 barracuda with fiberglass hood, fenders, trunk and bumpers. Interior is half gutted. Estimated to be 3200lbs
Vehicle came with 4.56 rear gear, which I highly suspect will be too tall at the end of the track, even with a taller tire, but I can always change that later.
Looking for a 70% race 30% street setup. Essentially romping in town, and going to the track 20 min away.
Solid flat tappet.
Automatic trans with 3500 stall, still pending order of trans and stall.
TTI 2" headers
10.6:1 compression with 78cc heads.
Mopar aluminum WEDGE dual plane intake #P5153525
Trick Flow 240 heads. 440 source 512 kit with all forged internals. See flow numbers below.
View attachment 1715674971
Here are a couple cams I'm looking at.
Howards: CL722362-08
Rough idle, Street/strip, Should have 10.5:1+ compression & 3500+ stall converter.
Basic RPM Range:3000 to 6500
Valve Lift Intake:.550
Valve Lift Exhaust:.555
Duration at 050 Intake:254
Duration at 050 Exhaust:260
Lobe Separation:108
Intake Centerline:104
Comp Cams: 21-232-4
Very strong mid & upper RPM power, 10:1 compression with a 3000+ stall.
RPM Operating Range:2,500-6,500
Intake Duration at .050 Inch Lift:244
Exhaust Duration at .050 Inch Lift:252
Intake Valve Lift:0.520
Exhaust Valve Lift:0.540
Lobe Separation:110
Hughes: HUG STL4650BS3-8
Use: Street / strip. High rise dual plane or small single plane. Head porting and oversize valves. Idle: Noticeable. Converter: 3400rpm+ Rear gear:3.70+
SEE ATTACHED IMAGE for cam specs. Couldn't copy the data over.
View attachment 1715674959
View attachment 1715674972
