help with cam selection bbc 427

[EAS69]

Hey everyone, I have a 427 bbc 512 block that will be going into my 69 camaro. I am running tremec 5 speed 3.73 gears, hooker headers 3". The pistons are keith black 9917 forged .030 .500 dome I think. The heads are oval port 113cc chambers #6272292, The compression is 11.06 to 1. The intake is edelbrock performer 2.0 with a 750 holley.
Now with that all said, this is a pro street car need vacuum for brakes. I car will be running street and track 50/50.
What do you guys suggest.

[EAS69]

The cam the builder put in it is crane 228 duration with .544 lift on a 112 lobe sep. I think this to small what do you think.

[yellow heap]

11-1 with iron heads is going to give you problems.
I do know a real L-78 396 with the late L88 cam can run on premium and limited timing and not detonate badly-cranking comp was 195
With your high comp. and mild cam I would think 215 psi cranking comp-It will DESTROY your motor with any pump gas-Do you have E85 in your area?

[EAS69]

I dont think so on the e85

[Mommy Wagon]

Cam is at minimum about 10 degrees @ .050 too small.

I would try to be around 240ish intake and 248ish exhaust. Bigger if you want to go roller.

Your compression and gears will make up a lot of bottome end. The overlap will also bleed of some compression.

I would also swap intakes. At minimum I would go to a Performer RPM. For my own car, I would go Victor. My personal opinion also is you need an 850, but I like carb work and adjusting.

Only ideas, let me know your thoughts.

[EAS69]

I have decided to go with a howards hydraulic roller cam, duration @50 is 236/242 with .620 .620 on a 112. The Lifter and the roller race rockers are Crane. I have also gone with Patriot heads 320 intake runner with a 121 chamber which will give me 10.8/1 compression. The intake I went with a dual plane air gap, as for the carb havent decided yet, but most likely a 850 or 950.

[Mommy Wagon]

EAS69, That sounds like VERY strong combo!!!!

I am excited to hear how you like it, that cam should sound great.

Good luck

[EAS69]

I got the cam installed to night. Everything went as usual, the rest tomorrow night. Will let you know how it sounds. should be good for 600 plus horsepower and torque.

[Mommy Wagon]

DAMN YOU! what kind of a tease is that........

Call in sick, get it running, inquiring minds NEED to know!

[EAS69]

DAMN YOU! what kind of a tease is that........

Call in sick, get it running, inquiring minds NEED to know!

Ok sorry for the delay. I got the sucker put together, and it fired right up. All I have to say is WOW, this sucker sounds great.