need helpbuilding 362 sbc

Hey guys im new here and I'd like to get somebody elses opinion on what components I should put into my engine to get optimum HP and torque while keeping the motor legal. Here is a very long list of the rules for engine outta the rule book. I'm building it for a dirt late model. Car weight is supposed to be 2250 after feature with driver.

Minimum 350cid -maximum 362cid using steel block, Maximum bore size is 4.060 Flat top pistons only. Bore-stroke combinations to achieve this: 3.480 or 3.500 on Chevrolet and 3.500 on Ford. Steel block for Chevrolet will have 9 inch deck and steel block for Ford will have 9.2-inch deck. Brodix SUPR stamped spec heads (with 60cc minimum combustion chambers). Chevrolet engines must have a Brodix HVl intake with no modifications except for port matching 3/4" to FelPro 1206
Ford engines must have an Edelbrock Victor Jr. intake with no modifications except for port matching 3/4" to FelPro 1262.

NO LIGHTENING OF BLOCKS. If found, a 25lb. weight penalty will be accessed in front of the motor plate.

*ADDITION TO SUPR SPEC ENGINE PARAGRAPH*
SUPR Spec heads with SUPR cast Iogos.
Chevrolet – Brodix Spec Head with SUPR castings.
Ford – Brodix “spec” head with SUPR castings on the outside and SPEC logo on intake and exhaust ports.

1. Intake port opening NO larger than original opening and may be port matched. Chevrolet may use a FelPro 1206 gasket and FORD may use a FelPro 1262.
2. Chevrolet-intake opening may be ground or polished 3/4” or NO farther into port than the closest edge of the closest letter of the SUPR logo. Ford-intake opening may be ground or polished 3/8". Intake port polishing will be allowed NO more than 1½" below the bottom of the original seat ring on the back side of the bowl area, and NO more than 1” on the short side. Any opening up of head past these points will be illegal.
3. Polishing will be allowed in the combustion chamber area to avoid hot spot chafing.
4. Polishing will be allowed in exhaust ports as long as the original SUPR logo casting is NOT affected or port shape is not altered.
5. NO intake or exhaust port relocation, raising, enlargement, or reshaping of any type.
6. Valve angle and placement may NOT be altered in any way on the “spec” head. NOTE: MSCCS has and will be using, Brodix supplied checking templates and tools on the “spec head” with SUPR logo casting. DON’T GO past these points or templates and tools will disqualify you.
7. In the rules above, if it doesn’t say you can, then don’t.

NOTE: These head and intake manifold combinations were designed with one thing in mind, to have equal air flow. If anything is done to increase airflow above original specs by manufacturer, they will be illegal.

NOTICE: As of January 2004 all heads will require 11/32 valves. NO EXCEPTIONS.

SUPR logo casting must remain, with NO changes, in all locations. Flat top pistons ONLY. *Titanium valves okay.* NO titanium crankshafts or connecting rods. Engine may be claimed by any 1st through 10th place finishing driver form the Feature race. Claiming price is $10,000 and includes intake manifold, valve covers, heads, block, oil pan, water pump, crank dampner, and internal components.


I have a 350 late model 1 piece rear main fresh outta the machine shop with new freeze plugs, cam bearings and was clearanced for stroker crank if I decided to go that route which I currently ain't. I also have the 3.5 stroke crank but nothing else currently for the engine so it's a blank slate do to say. The heads have a 67cc combustion chamber from brodix as well as 2.08/1.60 valves with 215cc intake runners and no rules on camshaft planned on running a solid roller. The rods I was either thinking of using 6.0 h beams or 6.125 h beams all forged internals.
So let's see what kinda responses I can get?  

I wouldn't be polishing anything in the intake tract. It says you can polish the ehxuast ports, however, the different between that and a surface of 36grit is not much as far as airflow improvement. Sharp edges, angles above 15 degrees you should look at closely and try to figure a smooth transition.

Now the chamber, polishing the head side for reflectivity and the piston crown as well will contain more heat in the chamber.

Sorry, I do not have much time right now to say much more, but I need to get moving to work now. I will read more on whats what.  

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These head and intake manifold combinations were designed with one thing in mind, to have equal air flow. If anything is done to increase airflow above original specs by manufacturer, they will be illegal.



Would they consider slightly changing the texture of a portion of the port that may have turbulence to reduce the turbulence? It influences smooth flow and sometimes may increase flow slightly.

Its not porting, so it just might be allowed. You just have to get somebody that has a flowbench and probing tools to analyze your ports to see if you have any areas that may have turbulence.

Look into valve work in the head along with the top cuts, seats, throats and undercuts that are applied  

Yeah you don't really want super smooth/polished intake ports to begin with.Exhaust ports are a diffrent story.You want the intake ports to help 'mix' the fuel and air as it goes into the motor.Not saying they should be ignored by any means.You just don't want to treat them like you would exhaust ports.My 2c.