Glad to help out....

Thanks for your help Cliff.

Should be fine. Lift increases wear so less is good in any engine that will see a lot of street miles.

If the engine isn't going to get but a few hundred miles a year then it really doesn't matter much.....

I’m not sure of which lobe lift or center line to use? I’m thinking this Custom Grind should meet my target goals.
What do you think? Thanks for you advice.

248/256 @ .050 duration
614/614 w 1.52 r
675/675 w 1.65 r
111 or 112 LSA

I use and prefer wider LSA here for anything that will end up driven on the street. It reduces overlap, improves vacuum at idle, power and performance at light engine load, etc. Tight LSA is strictly done for "menacing" idle quality unless we are talking about cams with over .260 @ .050" duration and full-race stuff. So basically you reach a point with duration where you have to pull the LSA down a bit or you put peak power beyond the "target" or the RPM capabilities of the assembly.....

Thanks for your help Cliff. I don’t understand why Butler would recommended an Extreme Marine Grind, unless it’s just the lobe lift that he was looking for. I think that grind and lift is probably 625 ish on HP. And the 111 LSA? I was thinking 112.

Lobe 3371/3373
.380 lobe lift
.570/.570 w 1.52
.627/.627 w 1.65

You woln't have trouble making 650hp with that much head flow but at 10.6 to 10.8 the cam needed will not make a lot of vacuum at idle speed.

Good thing is that you have a manual transmission so idle quality isn't as big a deal as with an auto trans car. I'd look at the Road Paver cam from Dave at SD or something in that range. They are around 244/254 @ .050" on a 112LSA. You might fall a tad short on HP but it will make up for it in idle quality and street manners.

We have one here in a 455 (468) with 11.3 to 1 compression (iron heads) and it idles really nice for that much camshaft. Has good street manners as well........

Cliff, I am building a 455 stroker and need some advice on camshaft selection. I will be using a hydraulic roller and was advised to use solid roller lifters. My target hp is 650 to 660 hp, pump gas, power brakes with street manners in a 3900 lb car with a 4 spd M-22 transmission. . Compression is 10:6 to 10:8.1. This car will be mainly driven on the street, and I would trust your advice over many. Thanks in advance. Jimmy

73 455 block bored .060 over with zero deck height
474 stroker
Ohio forged 4.25 crankshaft
Weisco flat top pistons 10cc valve relief
Crower 6.700 sportsman rods
Kauffman High Port heads
Northwind 4500 intake
Pro form 850 carb
Doug’s headers
12 bolt GM reared with 3.73 gears
Muncie M-22 transmission

Lift Int. Ex. Int/Ex ratio
.200 134 134 100%
.300 201 186 92%
.400 260 227 87%
.500 306 255 83%
.600 332 265 79%
.700 342 271 79%
.800 350 277 79%

254/262 duration @ .050
.570/.570 lift with 1.52 r
.627/.627 lift with 1.65 r
111 LSA

9400111699000921527983

Good afternoon Cliff,
I ordered a carb kit from you last week through the website. I was wondering if you received the order? And has it shipped?

Carb # 7040270
Frank Marotta
3389 Sheridan St
Hollywood, FL 33021