The AFR's are excellent, expensive, and pre ported. The TFS Street heads, flow very well, are cheap, and unported. The GT40X I have yet to see make outstanding numbers on any car.

Sky

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-1989 Saleen Mustang #406- TFS Heads, E-303, edelbrock intake,70MM TB, 73mm MAF, off road H, headers and 3chamber flows.
12.55@107mph
Going for 11's on 87 octane with A/C and 20+MPG!!!

Like I said, almost any of the aftermarket heads will put you in the 400's. I had a set of Windsor jr's on my 347 and they took me to a 11.8 @116mph. All they had was a gasket match and some exhaust work that I did myself, and the jr's are fore street stangs not race cars. I don't know anyone with the gt40x's but I do know FMS sells a 302 long block with them on there and it makes 345 out of the box. I'm sure if you had them ported you would be at 400 easy with a 347.


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347 W/ A-trim 6#'s, Canfield heads, out of the box Systemax II intake, solid roller cam. 11.1 @123mph

93lx 5.0 daily driver

Thanks for the info guys. How much are the AFR's? The stage II TFS heads were around 2 grand. Thats getting pricey. I want to keep the price around $1500.00 tops.

I think there are some somewhat local places that do porting, with stage II around $500-650. I believe. You could buy the heads and take them there.

Sky

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-1989 Saleen Mustang #406- TFS Heads, E-303, edelbrock intake,70MM TB, 73mm MAF, off road H, headers and 3chamber flows.
12.55@107mph
Going for 11's on 87 octane with A/C and 20+MPG!!!

I paid 1700 for my afr 205's, the only thing I had to do was put pc valve seals in 'em..if you specify them I'm sure they'd put them in for you. I like the fact that they are a FINISHED head. The 5 angle valve job was actually in the right spots! (the 185's would be a good pick too if you want to save money.)

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88LX notch, Speedpro EFI Procharged!

Dominion 32v heads!!

Camshaft breaking, DOHC power swilling beasties. Any one know if they still make those??

LOL

They still make them for chevys, but I don't think the ford versions ever took off. awesome heads though.

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88LX notch, Speedpro EFI Procharged!

I was considering getting a set of AFR 185's and putting them on my car now untill I get the stroker finished, then swapping them over.

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95GT B303 cam, 1.7 rockers, 65mm TB, 73mm MAF, milled heads, 355's K&N, BBK Longtubes, Flowmaster cat back, pulleys, msd coil, 9mm wires, Tremec 3550, Pro5.0 shifter,10.5 Motorsport clutch, FMS aluminum driveshaft, weld in subframe connectors