I;ve got a spare set of heads, I basically plan on intake gasket matching, and smoothing the valve guide boss, will gains from this actually be worth the trouble?
I;ve got a cam, headers, exhaust,intake, plus my current heads have .020 off, I plan on taking .020 off the spare heads also.

any thing else I can do besides the guide boos, and gasket match?

 

porting does wonders on high rpm. Its nothing fancy unless u have aftermarket heads

 

Nothing fancy?

Look at the MPH on my 305. This is the result of pocket porting, headers, an aftermarket intake, and a cam. I think the pocket porting must have made a big difference as there are others with the same and/or more mods who are about 4 MPH slower. The only difference I see are the heads.

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Daniel Burk
http://www.isthq.com/~dan/fcar.html
'84 Trans Am WS6/L69
KB SFC, Moser axles, Torsen Diff. PST suspension, Braided stainless brake lines, Koni struts, 11-inch rear disks,Spohn Adj. torque arm,
Ported 305 heads w/1.94"intake valves, Comp Cams XE262H, Griffen alum. radiator,
Turbine Technologies 2500 stall converter, underdrive pulleys, Crane Hi-6 & more.
1.05g skidpad verified.
New best E/T! 14.039 at 100.82 MPH in 41 degree air at Stanton, Michigan.

 

well, I guess I'll go ahead and do it when I get the time. Thanks for the replies.

 

i was talking about porting a pair of heads with a stock motor(nothing fancy)if u modified the induction than the porting pay a dividend.

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92' camaro
New 305 block TPI conversion, Flat top pistons,Bore over .30 Forged parts all around,Edelbrock intake,ported plennum,ported corvette alluminum heads, accel cam,52mm throttle bodie, SLP runners Home aid cold air induction, Air foil,ford SVO 19lb injectors,fuel regulator,cloys timing chain, comp alluminum roller rocker arms and pushrods MSD 8.5 mm wires, bosch plattinum plugs, hypertech cap & rotor and coil, Edelbrock TES headers, free flowing catalytic converter and a 3 inch force II flowmaster exhaust system, and a 3 inch cutout,Zoom multi friction clutch, T-5 tranny,billenstien shocks&struts.
Soon to come!!!
Procharger system 12lbs o boost.
New paint job(hawaiin orchid purple)Cast alluminum ZR1 rims w/ 275 tires.
Favorite quote: "where ever u go, there u are"

Other car;
1971 plymouth Duster
Mods:340,edelbrock victor jr. intake, 650 4 barrel holley, heddman headers,40 series dual flowmasters, cold air intake,4:10 gears, just got a new paint job and cragar rims with 315 tires in the back.
:Yeah its not a chevy but damn how many 71' dusters have u seen in the streets.

 

oh yea I have plenty done to the car, intake, cam,headers and exhaust.

You know whats really sad, my friend has an IROC that runs 13.2's in the 1/4, he has aftermarket heads,mild cam,carb,true dual flowmaster exhaust(awesome!),3.73s, but he has no headers. I;m willing to bet there is some serious power waiting to be uncorked.

 

Porting heads will benefit any car, regardless of mods. You just have to know what you are doing.