[427stingray]

I am putting together a 540. It has eagle rods and crank. J&E 10-1 pistons. Intake is a super victor with an 1150 Demon. Heads are Edelbrock RPM that have been ported. I am using a Crane Hydraulic roller 632 lift on the intake and exhaust intake duration is 318 degrees and the exhaust is 326 degrees and has a 108 degree centerline. I have crane gold roller rockers and pushrods are also crane. The distributor is from MSD AS IS THE 7AL box. I will also be running Hooker 2 1/8 super comps.
I have this hooked up to a turbo 400 by B&M that has a 10 INCH 3500 stall converter.
The rear in the car is a narrowed 9 inch Strange set up with a detroit locker and 4-11 gears. I am running 31 inch tall tires. This is all going into my 67 Pro street GTO.

What would you guys do different to this combo and how much HP could I get from this setup.

 

[SS402]

raise the compression or reduce the duration, the eddy rpm heads are gonna be the choke point .. just my $4.02

 

[Mike]

Quick run through DynoSim gets 610hp@ 6500 / 566tq@ 5500.
With just a change to AFR 315's it goes to 742hp@ 7000 / 613tq@ 5500.

 

[bbmusclecars427]

Quick run through DynoSim gets 610hp@ 6500 / 566tq@ 5500.
With just a change to AFR 315's it goes to 742hp@ 7000 / 613tq@ 5500.

I have to agree w/ Mike,The 1st thing is the AFR 315 Heads,The 2nd thing is the AFR 315 heads,the 3rd thing is (refer back to #1):hurray:

 

[Chris Stanwyck]

Some mismatching going on.
Small cam for a pro street 540, cam would work OK with eddy heads, duration @ .50?
Carb especially, intake, headers are on the big side for the eddy heads and cam. Since ya own the stuff use it. Sounds like a nice street combo. A 4150 1000hp carb on a ported vic jr would be good. Stall speed OK for your chosen camshaft/power zone.
The heads & cam will limit your power. This motor should peak quite early with the eddys giving you some extended life....
my $0.1.
635 hp, 585 tq.
Nice car.
Keep us posted.......good luck.

 

[427stingray]

Thanks for the replies guys.
The short block is together so the compression won't be changed, but I could get a different cam. And maybe better heads. I also have a 250 shot of nitrous that I forgot to add to the mix. I am at work right now and don't have the cam specs with me, so I can't get you the duration at .50


Any ideas on a larger cam?

 

[Mike]

By your description ,it should be this one:
http://www.cranecams.com/index.php?show=browseParts&action=partSpec&partNumber=139661&lvl=2&prt=5

 

[fowl69]

AFR 315s , ported intake , ditch the demon , pro sys . and a 4.30 gear . as well as a 8" converter ATI . let it eat.

 

[427stingray]

By your description ,it should be this one:
http://www.cranecams.com/index.php?show=browseParts&action=partSpec&partNumber=139661&lvl=2&prt=5

Thats it.

As for the heads the RPM heads were all ported about 5 years ago. I looked at the reciept I had for the machine work and the heads cost about 1200 for what they did. But like I said before I don't have any floew information on them.

 

[Guest]

Stayed single and had G/F's instead!

pdq67

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[427stingray]

What would be a good cam for this setup. If I got the better heads.