Stroking a 307

Ya you could but the two intakes I mentioned will still give you better low end torque than the vic JR.  
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Ok with the performer RPM air gap what carb spacer should I use a 4 hole or a open.  

The rpm intake does not need a spacer and is designed for square bore carbs. like edelbrock performer or holley carbs.  
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Ok I am going to go pick up the intake now, I had the machine shop order me both so I could do more research and he will just send the other one back. I will put it togeather tonight and I am going to dyno it tomorrow I will let you know how it does.

Thanks.  

OK good luck!  
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i would keep a tight quench if i were you, but since it's done.
how was knock sensitivity?
what was your final quench?
another thing if you back the timing off too much, this will cause the exuast valves to get real hot, and cause over heating issues on the engine. it's a bad thing. to be safe i'd pick up a knock sensor, like the jes safeguard, i hear nothing but good things about them. especialy since it only retards the timing on the cylinder thats knocking.
an ounce of prevention is werth a pound of cure.
that huge cam for the little motor should blead off alot of low end cylinder pressure, so detonation shouldn't really be an issue.
but, i'd polish the chambers anyway.
but as you stated it's already assembled. and on to the dyno.
could you post mpg when your done, along with drive train?

thanks.  

Well I have not dynoed it yet, but I have run it at 3000RPM for 20min or so after adjusting the lifters to break in the cam then ran it at about 2500RPM for another 30min or so to further break it in and now Im letting the engine cool for a few hours and I will do the final dyno pull in about an hour. I did have the block decked so I have a quench of .055, I did polish the chambers, and I decided to use 100 octane in it just to keep away from knocking.

Here is how I have it built.
307 block bored .03 over, decked .025 to 9.000 deck
cast steel 3.48 crank
stock 5.565 400 rods
cast 307 pistons
ARP rod bolts and main cap studs
Dart Iron eagle heads 52cc chamber/180cc runner with polished chambers
11:1 Compression ratio
Edelbrock RPM air gap intake with a 600 DP holley carb
Comp Cams .480/.480 lift 230/230 duration
Comp gold roller rockers (1.6 ratio on intake, 1.5 ratio on exhaust)
MSD/HEI ignition
1 5/8 inch long tube headers

Thats pretty much it. The engine has a nice little rumble to it and seems to run good.

The engine is going into a 1970 Nova with a Th-350 trans, 3000 stall, and 3.73 rear gears, with posi.  

The little 333/307 stroker did pretty good on the dyno for what it is. It cranked out 387 HP at 5600RPM and 394 LB-Ft of torque at 4300RPM.

I think that I could get over 400 HP if I had the heads ported, and the intake and heads port matched, and had a little bit bigger cam, and a bigger carb, but Im going to leave it as it is.  

Not bad not bad at all I was figuring it would produce 375Hp or so but those are good numbers especially for what it is.  
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The runners in the iron eagle heads had an as cast finish to them could I get more flow out of them by just polishing the runners, not porting them just polishing them and smoothing them out to get a shiny finish instead of the rough as cast finish.  

Sorry, I forgot to tell you that I was talking about the exhaust runners not the intake, I herd you want a rough finish on the intake and a smooth polished finish on the exhaust.  

Yes it will help but if you want all you can get out of them you should port or remove the casting flash from both sides.
I do not know why they told you that but the smoother the runners intake and/or exhaust the more power it will be capable of making.  
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I herd that you want a rough finish to the intake runner because it causes the air to spin or creates turbulence and that causes the air and fuel to mix better and makes the fuel atomize better. And you want a smooth slick exhause runner to keep away from carbon build up.

And have you ever seen a golf ball, it has little dimples all over it and cast iron is the same way it has little dimples in it just like a golf ball. And golf balls have dimples because air moves over a rough surface better than a smooth surface so the ball flies farther.

But if this is true why do CNC milled aluminum heads have smooth runners, and why do peaple polish the runners on there heads to make them smooth, I just dont know.  

Ok a golf ball has nothing to do with a intake runners, that may be true but were not trying to go farther were trying to flow faster.
gm made heads from 1987-95 that had a turbulence effect in the intake runners  they were called swirl ports that was said to give better low end performance but those heads sucked and are very low performance heads so the turbulence effect is just over rated and the smoother the runner the better as long as you have a good hot ignition system to burn the fuel being supplied to the engine it will build more power.

Heads are CNC'd and people port and polish there heads to make more power.  

Ok think about this the intake valve only stays open so long so the smoother the runner the quicker the flow the better the chance of getting more fuel into the cylinder which makes more power.
 
Professional hi-performance engine builder

Horsepower sells Engines and torque wins races.

wow..those are some great numbers..you should be proud...

tell us how she runs..