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Paid Pat g for a cam spec.239/246 .629"/.615" 113LSA +3advance (with 1.7ratio rockers).370” lift lobes/.362” lift lobes
is what he recommended.
information I provided 1969 Chevelle street car 398LQ9, 6.125 rods,3.9 crank, 4.03 JE ultra pistons,Trick Flow 235 heads from Tooley Racing milled to 67cc, -.006 DC ,Johnson 2116lsr lifters,BTR shaft mount rockers(BTR rockers new design). Tooley platinum .660 springs, Manton 3/8 pushrods, .054 gasket, Fast 102 LSXRintake and92mmTB,TKX 5 speed,3.70gear,long-tube 1 7/8 headerswithno cats,6500 rpm shift points, 6800 rpm rev limiter.
Gave the same engine specs to Cam Motion and they recommended a shelf cam Hot Street Stroker LS Camshaft (242/246-114+3).621/.604 for Cathedral Port.
The salesman at Tooley recommended something in the 239-242 intake duration range and add 4 to that for the exhaust duration example 239/243,242/246.
I ended up going with Cam motion 242/246 but I’m second guessing my choice. Not looking for a dyno queen.
Don't feel bad about 2nd guessing. I do also and im pretty sure everyone else does whether they admit or not.
Sounds like you want a fast street machine and with the 114+3 lsa on the Cam Motion, you should have a more than a fast street machine with a good idle and manners.
If anything, would be better with 4.10s, but see how you like with the 3.70s first.
For what it's worth I have a slightly similar build underway, 402 (4.000" x 4.000" LS2), 6.125" rods, 4.000 JE pistons, MMS235 heads, a mamofied FAST 102 and 90mm TB, 2126LSRs, 1 7/8 headers going through a T56 with 3.46 gears out back (I know...). Shooting for ~11.5:1 compression with a 0.041" gasket.
Potentially similar street focused goals, I'm not fussed about 1/4 performance, I wanted peak power around 6300 / 6400 but for it not to fall completely on its face above that so I can rev it to 7000 if the mood takes me without it feeling like its down a couple of cylinders. Ultimately though tyre melting midrange was more important than a top end charge, as I didn't want to 'have' to rev it all the time. Some street manners would be nice but it's a fun / stupid car so I was happy to have to work a bit to drive it smoothly.
Tony specced a 237/242 on a 113+2, 650+ lift on intake and exhaust with 1.8 rockers.
I'm happy that it's a little smaller than would perhaps be the 'norm' for a 402, as I think that'll better suit what I want from the car, I was initially thinking a little smaller but Tony pointed out the 402 will make good torque anyway because of the cubes, he suggested going to a 239 if I wanted to bias it a little more towards the top end, but in the end we settled on the 237. He was a great guy to work with, and even with his excellent reputation being able to chat to him on the phone about it from the UK was really reassuring.
I’ve contacted him also, before building the engine and seen he’s done some great builds. Decided on wanting to stick with factory style rocker arms. And that BTR shaft mount rockers deal seemed like it could work good.
Here’s a couple pictures of it.
Verifying oil flow. BTR shaft mount rockers/BTR rockers Before measuring for pushrods.
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398 cam specs 
