[xzero117]

it's a 350 small block with approx 10.3:1 compression ratio

I want a cam with good midrange power and a mean sounding idle, yet i don't want any vaccum issues because i have power brakes, this is going to be a street vehicle.

It has to be under 500 lift because that's what my springs are rated for

 

[ap72]

Elgin 1785p is about the best match for your goals with crappy .500" springs. Even with recurved timing your vacuum at idle will be low though. You'll need a vacuum canister.

 

[Silver Surfer]

it's a 350 small block with approx 10.3:1 compression ratio

I want a cam with good midrange power and a mean sounding idle, yet i don't want any vaccum issues because i have power brakes, this is going to be a street vehicle.

It has to be under 500 lift because that's what my springs are rated for

How can you have selected your springs before buying a cam? Step 1, get a cam, step 2 follow cam makers spring recommendation to match cam.

And roller? Retro-roller? Flat tappet? Solid? Hydraulic?

 

[zildjian4life218]

How can you have selected your springs before buying a cam? Step 1, get a cam, step 2 follow cam makers spring recommendation to match cam.

And roller? Retro-roller? Flat tappet? Solid? Hydraulic?

^^^X2. Without knowing the spring rates and what they are designed for its a big risk just throwing any bump stick in.

 

[spacytracy]

x3, toss the springs. I went with an edelbrock rpm cam and love the sound and power.

 

[xzero117]

I doubt i'll ever be going down to a drag strip, just want a good streetable cam that sounds good

edit- it's a flat tappet cam I need

http://www.summitracing.com/parts/SUM-K00052/ I had this cam in mind but you guys have more experience engine building than I do

 

[Silver Surfer]

I doubt i'll ever be going down to a drag strip, just want a good streetable cam that sounds good

All the more reason you HAVE TO USE THE CORRECT SPRINGS. You want a street engine to be reliable and last a long time right?

 

[ap72]

I doubt i'll ever be going down to a drag strip, just want a good streetable cam that sounds good

edit- it's a flat tappet cam I need

Summit Racing SUM-K00052 - Summit Racing Street & Strip® Cam Kits - Overview - SummitRacing.com I had this cam in mind but you guys have more experience engine building than I do

That's a little less aggressive than the one I showed you it should be fine with those springs, relatively streetable.

 

[vinniekq2]

I would run a 224 ish duration solid flat tappet cam with 480 lift.It would be a nice idle at 850 rpm.choosing a lobe displacement angle is just as important as duration and lift. sounding nive Vs going well? I choose the power.Lots of people do not like adjusting valves,I think its a fair trade off for the performance you get.