A little more Horsepower

[fastd]

Thanks for all of your comments guys; all very helpful.

I thought I would add one more bit of information as I figured out a little more info regarding current heads;

Turns out that the heads are World Products Windsor Sr Heads; 200 intake, 58 cc chamber, 1.25' single spring; weight of 55
at 600 lift, intakes flow at 272 cfm, exhausts flow at 191 cfm.

I called AFR to see what they would recommend for an update; they suggested 185 cc with a 58 cc chamber; and they flow nearly identically to the World Products heads...The sales person thought that the 205 cc would be too much for my application...? Sales person said I should pick up about 50 hp switching to these heads with current cam.

[patrickt]

Remember he's a salesman. Don't buy anything until you've had your engine dyno-tuned and you have a benchmark graph of your TQ/HP numbers to work from. Then you might want to ask your mechanic for a quote on the labor to put on the new heads, assuming you bring him the new heads and the new gaskets, etc. Then you might ask him how much additional labor he would charge you if you also brought him a cam to put in as well. I know you're reluctant to do change out the cam, but just seeing the labor cost numbers wouldn't hurt.

[blykins]

He is indeed a salesman, but there is more to it than the flow numbers. For a high performance street application, you can't beat AFR head performance.

When you can compare two heads and the flow numbers are the same, but one head has a smaller port volume, you know something is right. This also helps on flow velocity, which in turn gives good street performance.

[RodKnock]

Originally Posted by blykins

He is indeed a salesman, but there is more to it than the flow numbers. For a high performance street application, you can't beat AFR head performance.

When you can compare two heads and the flow numbers are the same, but one head has a smaller port volume, you know something is right. This also helps on flow velocity, which in turn gives good street performance.

I think the AFR's are great heads and I owned a pair on a previous car. However, I would not ignore and/or discount the offerings from Brodix. They also make an excellent head.

[patrickt]

I want to see the dyno numbers -- I bet the numbers are lower than he's been led to believe.

[bobcowan]

Originally Posted by fastd

Turns out that the heads are World Products Windsor Sr Heads; 200 intake, 58 cc chamber, 1.25' single spring; weight of 55
at 600 lift, intakes flow at 272 cfm, exhausts flow at 191 cfm.

Those are excellent heads. 50hp with AFR's? Maybe, but I wouldn't bet on it. With a small amount of bowl and port work, those heads are ready for everything but the most extreme cams. If they'er aluminum, I'd keep them and use the money elsewhere.

[patrickt]

Originally Posted by bobcowan

If they'er aluminum, I'd keep them and use the money elsewhere.

Nope, they is FE....