After studying all the pros and cons for several years now, this is what I have done. I bought TFTW from Summit along with 1.7 TF RR's, gasket set. adjustable push rod to check length (mandatory) and will need new push rods after length determination, and ARP head bolts.
I have my new heads at the machine shop for pocket porting and gasket matching to the intake (carbureted Performer). This little chore will be another $250.
After studying things for at least 2 yrs., I came to the conclusion that I could beat the excellent AFR 165's slightly by getting the TFTW's with a stage one porting job. Actually they would have been dead even without any porting.
My thought is if I ever go to a stroked 351W, The 2.02 intakes and the 170 cc intake ports will be advantageous.
In conclusion, I went with minor ported TFTW heads over the CNC'ed AFR's. All for about the same total price. My project comes to $1800 BTW.
Rev
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'66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi.
O.B.C. #2
'66 coupe
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