[bad2be]

I have a 350 4-bolt main bored 30
a 510 duration 530 lift lanati cam a crank turned 10 10
300 horse heads valved and seeded spings to match crank
2 speed powerglide tranny with a 2500 hole shot stall converter
accel distributor and wires
msd firing box and 411 gears
any idea on how much horsepower I'll have

[Zimmo]

Originally Posted by bad2be

I have a 350 4-bolt main bored 30
a 510 duration 530 lift lanati cam a crank turned 10 10
300 horse heads valved and seeded spings to match crank
2 speed powerglide tranny with a 2500 hole shot stall converter
accel distributor and wires
msd firing box and 411 gears
any idea on how much horsepower I'll have

What the c/r ? I can run this on DD for you, but I need to know what heads you are using (casting #). Also, what's the p/n on that Lunati cam?

I would guess between 330 - 360 hp at the crank depending on the heads & c/r.

[bad2be]

It is 66cc on the heads
and here is the cam specs valve lift .510 .530
lobe lift .340 .352 ADV DUR 304 312 .050 DUR 244 254
Lash .000 .000 LOBE CEN 102 110
.050 timing BTC 20 ABC44 BBC57 ATC 17

[Blazin72]

What intake manifold and carburetor are you using? What are the actual head castings? Are they aftermarket of some sort or are they factory heads like 461s, 186s, 882s, etc...? I have a feeling that cam might be too big for your engine... Can't say for sure because you still have not given enough info on your engine.

[bad2be]

I have a 750 holley double pumper carb. team G intake manifold
factory 300 horse heads

[matt167]

Originally Posted by bad2be

I have a 750 holley double pumper carb. team G intake manifold
factory 300 horse heads

ok lift up a valve cover for us, and get the #'s in the rocker valley, only need the last 3 digits.

[bad2be]

461s I don't think their factory

[Zimmo]

That's a pretty big cam, & the single plane intake moves up the powerband even more. With that combo, the heads will be signing off before any real hp starts happening. You will also need around 11:1 C/R keep some pressure in the cyl running that big cam.

I would keep the intake duration at .050 between 225-230 with about 9.5: 1 C/R, & a high-rise dual plane intake, like a performer RPM or something.

[RHamm1320]

I have to agree with the previous posts. Your heads are killing the upper rpm power and intake is killing the bottom end torque - you kind of in the middle without the benefit of either torque or horsepower.

You could go with a different cam, dual plane intake for a street car - or you could go with more compression ratio, new heads or more porting and maybe even a bigger camshaft if its a strip only car.

I ran it thru the computer just to see what happened

http://www.virtualengine2000.com

[cabowabo]

Originally Posted by RHamm1320

I have to agree with the previous posts. Your heads are killing the upper rpm power and intake is killing the bottom end torque - you kind of in the middle without the benefit of either torque or horsepower.

You could go with a different cam, dual plane intake for a street car - or you could go with more compression ratio, new heads or more porting and maybe even a bigger camshaft if its a strip only car.

I ran it thru the computer just to see what happened

http://www.virtualengine2000.com

38 deg. total timming i would set it at 32 total
the intake cc 165 seams low to me take away the injection flow it might go higher on h/p

[Zimmo]

165 cc is about right. I think there was a factory head in the 180's - Turbo heads?