Starting my 461 build any tips.
My goal is a very street able motor with little or no track time
Here's what I got
6x4 iron heads/ ported.(97 cc)
1974 400 cid
Eagle 461 stroker kit with cast crank
Performer intake manifold
650 Holley ( prob too small)
And yes I am realistic about my expectations
I'll make a few comments, because that's what we do on forums.
The Performer intake, as well as the 650 will choke a 461. I'd recommend a good 800 Q-jet, like maybe an SMI stage 2.
But, if you prefer a square bore, most consider the downleg booster type carbs, better than the cheaper straight leg type. If your budget is limited, I think the cheapest decent carb of this type is the old Holley 3310-1 that most call a "780 vacuum". There are still some of these around. Ebay usually has several used and rebuilds.
If you have $500 to spend on new carb, Quick Fuel makes some nice vac sec street carbs.
Some guys insist on a double pumper. But, I & many others prefer the vac secondary type. The last bracket car I bought had a 750 straight leg vac sec Holley. I figured I'd probably swap it out for a Q-jet. But it worked so good, I just kept it on there. No, the car was not quick at all, by today's standards. Ran 7.30's in the 1/8 mile. But, the carb, on a Torker 2 intake, left clean either from an idle, or a 2000rpm power brake--1.60's 60ft times. This was with 4.10 gears, slicks, and ladder bars.
So, the engine was probably making around 400hp or a little more & about 500ft lbs of torque. On the street, with hard street tires, the main problem with this engine would be traction. I just don't see why anybody would really NEED any more power than 400hp/500ft lbs. But, whatever.
The single plane intake is just fine for a 455+. If you want a single plane which will accept a square bore or Q-jet, one of the cheap Chinese intakes will work. They sell for about $150 on Ebay. I bought one. It actually looks real good to me. Haven't used it yet. Will probably save it for use with a Q-jet.
Now, about the cam. I've done some price checking on all the parts for a complete roller cam set-up. The bottom line is that the roller will cost over $1000 more than a decent HFT set-up. The HFT will easily make a very streetable 400hp/500ft lbs. And, if you use either Hylift-Johnson 951R or Rhoads lifters(which are modified Hylift-Johnson), you are not likely to have any cam failure issues. Obviously, you need to use oil with sufficient amounts of ZDDP, or oil supplements with it, and follow proper break-in procedures. Lots of guys use the 15W-40 diesel grade oils, like Rotella T & Delo 400. I'm using Delo 400 & one bottle of STP, which contains ZDDP.
As for specific cam recommendations, they can vary WIDELY on the forums, depending on who you ask. So, I'll just post my thoughts and not argue with others. If you have power brakes, I'd use an 041 clone such as the Crower 60919 or Melling SPC-8, and Rhoads RL-9518 lifters.
If you don't have power brakes and want a little rougher idle, you can run the Hylift-Johnson 951R lifters. Paul Knippen is a Pontiac engine builder who sells these lifters.
There are certainly bigger cams you can choose, if you just want a nasty idle. But, these 041 clones are proven in 455 street Pontiacs. They will make lots of low end torque, and will pull to 5000rpm--just what most need for the street. IMO