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Discussion Starter #1
currently have ported performer rpm that flow [email protected] and 185 on exhaust whit a vic jr intake and solid roller 248-256 .640 .648 110 makes in the low 400rwhp been a 128mph @3000lbs

im looking to upgrade my heads been thinking about afr 205s or tfs high ports and possibly a super vic intake

will tea 225 heads be to big for a 347 10.5 comp or should i stick whit a sub 215cc head like the afr 205s motor will not be reved past 7500rpm
 

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The 205's will work nicely, if you had more compression and more rpms then the 225's.
 

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I would go with the TEA 225 high port, a set of 1 3/4 Kooks headers, mill the heads to 53cc for more compression, go with a port matched super victor, and absolutely change that cam. if you can get 11.5 compression, put a 262/268 on 107 in there, with Comp HXL intake and HXX exhaust lobes and 1.6 rockers. Use a Comp 919 spring with titanium retainers. the heads come with those parts anyway. the only other thing you may have to worry about is the valve pockets working with your heads.

7500 shift and trap rpm means you should run a 6000 stall 8" converter. the rear gear depends totally on the weight of your car. if it was a 2900 lb car, i would go with a 4.56 gear and 28" tire. probably run 10.15 at 131 mph.
 

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Lol! Busch nailed it again. It would be a killer setup that he discussed with about a 7800 shift point.
 

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Discussion Starter #6 (Edited)
will there be a big difference in between afr205s and the tea225?
the car has to run on pump gas 91oct to so the 11.5 might be borderline but hey im no expert. but going the hight port route mean quite a bit more money i dont mind it if there gona be a big difference but right know the car has been 128mph id hate to spend 4k to go just 131 range.the car is stick shift by the way faceplate tko running 4.30gears and no bigger than 26x10slick
 

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I am an advocate for High port heads ran them on my 10.90 n/a 306 for years otb. But for the money and the numbers your looking for it's really hard to beat AFR 205's otb with light weight 8mm valves, CNC ported etc. I have them on my n/a 331 252/256 SR. Ran a best of 9.98 @ 136 at 2700 w/ driver...oh yeah with a face plated TKO as well :)
 

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maybe a stronger block for a power adder. maybe go 363 in the process. maybe Im crazy but it seems like your rpms are pretty good and afr 205 wouldnt be all that much better
 

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You can get away with 11.8 on 93 octane with the right tune. A cheaper route maybe a lightly worked vic jr head, or a fully ported out tw. It all goes back to part matching, and tuning...
 

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Discussion Starter #10
what can i expect power wise whit a 347 11.5comp super vic and 225 hightports with the right cam whit no more than 7500-7800 600 flywheel hp?
 

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You can make 600hp na with a 347 many different ways, but it needs to be a matched combo. We have a 302" motor with a set of the pro-port jrs on it, street solid roller, pump gas, and it makes right at 500hp na. It is not a stk bottomend, it is a A4 block, 4.060" bore, with a 2.90" billet crank. It was parts that was going into a 9000+ rpm na deal for the old SW class at FFW. Went it went under, the customer could not move the stuff. So we slapped together a setup for street use, and alittle n2o. It puts down over 800rwhp on a dbl cross plate with a 73n jet in each stage. With 347"s that along would put it near the 600hp mark, so yes it's do able! Like I said, a nice set of Vic Jr's, AFR 205's/225's, HP 225's, Brodix, there are many to choose from. It's not all in the heads, it is attention to details that will get you there...
 

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Knowing that head..... If the cam is right... 600-625 would not be beyond the realm of possibility..... Id say itd be closer the the 575-600 range thou not knowing how it was built, clearances etc etc.
 
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