I bought all the parts to my car except the heads, so I sent AFR a email for their recommendation. I was planning on using the AFR-195 for my street engine but here is what they had to say:
Dear David,
The 210cc heads will be the best choice for your combination.The heads will be fully cnc and will flow 285cfm intake and 220cfm exhaust.The heads will have a spring that will handle a solid roller good to .670 lift. The heads will come in a 76cc or 66cc chambers.The heads will start at $1450 complete ready to bolt on. and $739 for a bear as cast head with just seats and guides only. these heads are not finished and will require alot of work. We are about 6-8 wks for delivery.Thank you for your interest in our cylinder heads.Please feel free to call with any questions that you may have.818-890-0616.
Sincerely,
Marc

Sent: Monday, December 08, 2003 8:02 AM
To: 'info@airflowresearch.com'
Subject: Head Recmmendation

Needs heads recommendation for SBC 400 Street/Weekend Warrior that will need springs for Solid Cam.

What is the price complete and bare.



SBC 409

4.165 Bore X 3.750 Stroke

Compression: 10:44:1

Cam: Lunati Solid Mechanical Cam

Grind: 280/284F10

Adv. 280/284@.020

Duration: 247/251@.050

Lift: 525/530 w/1.5 rockers

Lobe Separation: 110

Centerline: 106

Carb: 750 Holley Vac. Sec

Converter: 3000stall

Trans: 700R4

Rear: 3:73

Intake: Edelbrock Victor Jr.

26" Tires

Wiseco Tru-Pro flattop Piston 5.4cc

Scat 9000 Crank 3.750 x 6.000 Stroke

Eagle H-Beam Rods: Forge 6"

check on the upgrades, heres where i made my mistake. if you use, or ever decide to use 1.6 you will be at the limits of the regular stock valves and springs as they are only good to .550 lift. they will upgrade the valves and springs for about 200$ and good to .600 lift. the springs are rated at 130# seat 350# open. these are +.050 longer. if i had to do it all over again i would have got the +.100 valves and springs so i could go to a large solid roller. as far as the 210s, i guess it really depends on what your goals are for the car, and i cant help there. Dave

that topic sounds funny TO MUCH HEAD i wish :D

hahaha

I would definetly go with the bigger heads, they have such great flow numbers so you know the velocity is going to be decent. I have learned that it is usually your cam that will limit the rpm of your engine, I know people who use the 195's on mild 350's! I think your 400 sounds liket its on the high end side. SO the 210's should work great! Plus they will leave you room to grow.

deebo if you use the 195s and upgrade the valves and springs you will be at the same price as the 210s .you might want to check with chet herbert they may have what you wont in stock

deebo also check jds performance in orlando fl.they have some good prices my brother bought a set from him and was real pleased with the way they did bisness

Either head would work well for you. IMO the 210s will make more top end and the 195s will be stronger in the lower rpm ranges. Around town the 195s will be more responsive but when you are really on it the 210s will win out. I like my 190 AFRs but my motor is more of a cruser. If you look at an oval port 396 its got more head(at least volume wise than a 195 small block head). In the 408 small block vs. 408 big block comparo, the small block used a 200cc head and was stronger untill about 3800rpm then the big block pulled away from it.

Just call me Mr. Spelling Bee. Baer head castings are actually bare castings. Wont is actually want. Bisines is actually business. No problem. Tonight I delivered my monthly church minutes {I'm the secretary}, and I wanted to note that the tiles were getting loose under the piano. So I wrote 'needs tilling under the piano', and--well--all the boys were trying to figure out how to get a garden tiller under the piano, lol!